{"title":"Cylinder Heads \u0026 Components","description":"","products":[{"product_id":"35-5mm-intake-valve","title":"35.5mm Intake Valve Type 1, 2, \u0026 3","description":"\u003cstrong\u003eThis is one individual 35.5mm intake valve for a 1500-1600cc engine.\u003c\/strong\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":742288803,"sku":"311 109 601","price":6.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/311-109-601-Side.jpg?v=1756336705"},{"product_id":"32mm-exhaust-valve","title":"32mm Exhaust Valve Type 1, 2, \u0026 3","description":"\u003cstrong\u003eThis is one individual 32mm exhaust valve for a 1500-1600cc engine\u003c\/strong\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":742288835,"sku":"113 109 612","price":6.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/113-109-612-Side.jpg?v=1756336703"},{"product_id":"stainless-steel-valve","title":"Performance Stainless Steel Valves Type 1, 2, \u0026 3","description":"\u003cp\u003e\u003cstrong\u003eOur stainless steel valves come in 6 different sizes. Made from High-Quality Stainless steel with Standard three slot keeper groves and a swirl finished back. They can be used as intake\/exhaust valves in almost any VW Type 1 head casting.\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eValveSizes: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e32mm\u003c\/p\u003e\n\u003cp\u003e35.5mm\u003c\/p\u003e\n\u003cp\u003e37.5mm\u003c\/p\u003e\n\u003cp\u003e40mm\u003c\/p\u003e\n\u003cp\u003e42mm\u003c\/p\u003e\n\u003cp\u003e44mm\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e*Please Pick size when ordering above\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCall to check availability*\u003c\/strong\u003e\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"32mm","offer_id":34643979523,"sku":"031 EV 320","price":13.95,"currency_code":"USD","in_stock":true},{"title":"35.5mm","offer_id":742288863,"sku":"031 EV 355","price":13.95,"currency_code":"USD","in_stock":true},{"title":"37.5mm","offer_id":831077699,"sku":"031 EV 375","price":13.95,"currency_code":"USD","in_stock":true},{"title":"40mm","offer_id":831078119,"sku":"031 IV 400","price":13.95,"currency_code":"USD","in_stock":true},{"title":"42mm","offer_id":831078559,"sku":"031 IV 420","price":13.95,"currency_code":"USD","in_stock":true},{"title":"44mm","offer_id":831079799,"sku":"031 IV 440","price":13.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/031-EV-355-Side.jpg?v=1756336702"},{"product_id":"vw-head-rocker-arm-stud","title":"Rocker Arm Stud VW Type 1, 2, \u0026 3","description":"\u003cp\u003e\u003cstrong\u003eBrand new individual rocker arm stud for VW Type 1, 2, \u0026amp; 3. Sold as each. A pair isneeded per head,2 pairs required per vehicle.\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":742288919,"sku":"031 HS 003","price":3.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/031-HS-003-Single.jpg?v=1756336700"},{"product_id":"vw-performance-chromoly-valve-retainer","title":"VW Performance Chromoly Valve Retainer Set Type 1, 2, \u0026 3 (Set of 8)","description":"\u003cp\u003e\u003cstrong\u003eBrand new set of 8 Chromoly valve retainers. \u003c\/strong\u003e\u003cstrong\u003eMade from a Strong Lightweight Chromoly, these retainers are heat treated and machined to exact tolerances.\u003c\/strong\u003e\u003cstrong\u003eW\u003cstrong\u003eill work great with both dual and single spring.\u003c\/strong\u003eThey can be used as intake\/exhaust retainers in almost any VW Type 1 head casting. Also Used as custom retainersin Type 4 Heads with 8mm Valves.\u003c\/strong\u003e\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":742288943,"sku":"031 VR 503C x8","price":29.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/031-VR-503-8.jpg?v=1756336698"},{"product_id":"high-rev-valve-springs-for-air-cooled-type-1-2-3-heads","title":"Single High-Rev Valve Springs for VW Type 1, 2, and 3 (Set of 8)","description":"\u003cp\u003e\u003cstrong\u003eBrand new set of 8 single High-Rev Springs, Prevent engine damage due to valve float or worn out weak valve springs.\u003c\/strong\u003e\u003cstrong\u003eMade from special silicone spring steel.\u003c\/strong\u003e\u003cstrong\u003eApprox. They can be used as intake\/exhaust springsin almost any VW Type 1 head casting. Also Used as custom springs in Type 4 Heads with 8mm Valves\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":742290203,"sku":"031 SS 005 x8","price":31.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/031-SS-005-8.jpg?v=1756336660"},{"product_id":"new-vw-1600-dual-port-high-performance-cylinder-head-40x355","title":"VW 1600 Dual Port Performance Cylinder Heads, 40X35.5 \"Pair\"","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new set of 2 high-performance cylinder heads for a VW Type 1, 2, or 3 dual port. Heads comes with stainless steel 40mm intake, stainless steel 35.5mm exhaust valves, harden keepers, chromoly retainers, and single high-rev springs. They are ready to install.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMade from an AA 500 series casting, these come STD with clean flowing cooling vanes for maximum cooling through the head and around-the-intake ports for increased HP and overall cooling. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThese heads feature:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eA modernized combustion chamber for increased head flow \u0026amp; performance. \u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eA second full fin so you can fly cut your heads deeper to achieve almost any desired head CC volume needed. \u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eBlocked-off rocker stud bosses to eliminate the O-ring and stop possible oil leaks. \u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLong-reach 3\/4\" spark plugs to reduce the chance of cracking between the valve seat and plug.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine: \u003c\/strong\u003eVW Type 1, 2, and 3 1600 dual port\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSprings: \u003c\/strong\u003eSingle or dual high-rev springs\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValves: \u003c\/strong\u003e40mm intake by 35.5mm exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAA Performance 500\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHead CC's: \u003c\/strong\u003e60\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlug Size:\u003c\/strong\u003e 12mm (Replacement NGK number is D8EA)\u003c\/p\u003e\n\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eBore: \u003c\/strong\u003e85.5 - works with 85.5,87 and 88 slip-in kits\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eBore: \u003c\/strong\u003e92 - works with 88 thick wall, 90.5, and 92mm kits\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eBore: \u003c\/strong\u003e94 - works with 92 thick walls K and M and 94mm kits\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":42152422083,"sku":"500 420 85B X2","price":551.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/500-420-85B_78.jpg?v=1756336658"},{"product_id":"new-vw-1600-dual-port-cylinder-head-35-5x32","title":"VW 1600 Dual Port Cylinder Heads, Stainless Steel Valves 35.5X32  \"Pair\"","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new pair of cylinder heads for a VW Type 1, 2, or 3 dual port. Head comes with a stainless steel 35.5mm intake, stainless steel 32mm exhaust valves, harden keepers, chromoly retainers, and single high-rev springs. They are ready to install.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMade from an AA 500 series casting, these come STD with clean flowing cooling vanes for maximum cooling through the head and around-the-intake ports for increased HP and overall cooling.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThese heads feature:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eA modernized combustion chamber for increased head flow \u0026amp; performance. \u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eA second full fin so you can fly cut your heads deeper to achieve almost any desired head CC volume needed. \u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eBlocked-off rocker stud bosses to eliminate the O-ring and stop possible oil leaks. \u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLong-reach 3\/4\" spark plugs to reduce the chance of cracking between the valve seat and plug.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine: \u003c\/strong\u003eVW Type 1 2 and 3 1600 dual port\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSprings: \u003c\/strong\u003eSingle\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValves: \u003c\/strong\u003e35.5mm intake by 32mm exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAA Performance 500\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlug Size: \u003c\/strong\u003e\u003cspan\u003e14mm (Replacement Bosch number is W8CC or NGK is B5ES.)\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore:\u003c\/strong\u003e 85.5 - works with 85.5,87 and 88 slip-in kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore:\u003c\/strong\u003e 92 - works with 88 thick wall, 90.5, and 92mm kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore:\u003c\/strong\u003e 94 - works with 92 thick walls K and M and 94mm kits\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":42152442627,"sku":"500 400 XXB X2","price":539.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/500-420-85B.jpg?v=1756336656"},{"product_id":"new-vw-1600-stock-dual-port-cylinder-head-35-5x32","title":"VW 1600 Stock Dual Port Cylinder Heads, 35.5X32 \"Pair\"","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new Cylinder Head set for a VW Type 1 2 or 3 Dual Port 1600. Heads comes with 35.5mm Intake and a 32mm Exhaust Valves, with Keepers, retainers, and springs. Its ready to install.\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMade from an AA 500 Series Casting it comes STD with: Clean flowing cooling vanes, for maximum cooling through the head, and around the intake ports for increased HP and over all cooling. A modernized Combustion chamber, for increased head flow \u0026amp; performance. A second Full Fin, so you can Flycut your heads deeper to achieve almost any desired Head CC volume needed. Blocked off rocker stud bosses, to eliminate the O-ring and stop possible oil leaks. Long reach 3\/4 Inch Spark Plugs, to reduce the chance of cracking between the Valve seat and Plug\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine: \u003c\/strong\u003eVW Type 1 2 and 3 1600 Dual Port\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSprings: \u003c\/strong\u003eSingle\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHead CC: \u003c\/strong\u003e54\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValves: \u003c\/strong\u003e35.5mm Intake by 32mm Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAA Performance 500\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlug Size: \u003c\/strong\u003e\u003cspan\u003e14mm (Replacement Bosch Number is W8CCor NGK is B5ES.)\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e85.5, works with 85.5, 87, and 88 slip in kits\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":42152281859,"sku":"043 101 355CK X2","price":463.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/files\/043101355CK.jpg?v=1777058463"},{"product_id":"new-amc-1-7l-type-4-aircooled-cylinder-head","title":"AMC 1.7L Type 4 Air cooled Cylinder head","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new, Cylinder Head for a VW Type 4 1.7L . The head comes with Intake and Exhaust Valves, with Keepers, retainers, and springs. Its ready to install. The head has 2 smog holes and is tapped for the head temp sensor.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.5;\"\u003eEngine: \u003c\/strong\u003eVW Type 4 1.7L\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.5;\"\u003eYear:\u003c\/strong\u003e1972-73\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.5;\"\u003eCasting: \u003c\/strong\u003eAMC 1.7L\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.5;\"\u003ePort: \u003c\/strong\u003eRound\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHead CC:55\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.5;\"\u003eBore: \u003c\/strong\u003eSTD 1.7L, works with VW9000T4F VW9000T4E Piston and liner kits\u003c\/p\u003e","brand":"AMC","offers":[{"title":"Default Title","offer_id":742290343,"sku":"021 101 361K-AMC","price":687.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/021-101-361K-1.jpg?v=1756336653"},{"product_id":"new-amc-1-8l-type-4-aircooled-cylinder-head","title":"AMC 1.8L Type 4 Aircooled Cylinder head","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new, Cylinder Head for a VW Type 4 1.8L . The head comes with Intake and Exhaust Valves, with Keepers, retainers, and springs. Its ready to install. The head has 2 smog holes and is tapped for the head temp sensor\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.5;\"\u003eEngine: \u003c\/strong\u003eVW Type 2 1.8L\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.5;\"\u003eYear:\u003c\/strong\u003e1974-75\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.5;\"\u003eCasting:\u003c\/strong\u003e AMC 1.8L\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.5;\"\u003ePort: \u003c\/strong\u003eRound\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHead CC:\u003c\/strong\u003e58\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.5;\"\u003eBore:\u003c\/strong\u003e STD 1.8L works with VW9300T4, VW9600T4S66 and B66 Piston and liner kits\u003c\/p\u003e","brand":"AMC","offers":[{"title":"Default Title","offer_id":742290379,"sku":"022 101 361C-AMC","price":687.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/022-101-361C-A.jpg?v=1756336651"},{"product_id":"new-amc-2-0l-type-4-aircooled-cylinder-head-round","title":"AMC 2.0L Type 4 Aircooled Cylinder Head \"Round Port\"","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new, Cylinder Head for a VW Type 4 2.0L. The head comes with Intake and Exhaust Valves, with Keepers, retainers, and springs. It's ready to install. The Head is tapped for the head temp sensor.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.2;\"\u003eEngine: \u003c\/strong\u003eVW Type4 2.0L\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.2;\"\u003eYear: \u003c\/strong\u003e1976-78\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.2;\"\u003eCasting: \u003c\/strong\u003eAMC 2.0L\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.2;\"\u003ePort: \u003c\/strong\u003eRound\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHead CC:\u003c\/strong\u003e55\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.2;\"\u003eBore: \u003c\/strong\u003eSTD 2.0L, works with VW9400T4, VW9400T4E, VW9600T4S71 and B71 Piston and liner kits\u003c\/p\u003e","brand":"AMC","offers":[{"title":"Default Title","offer_id":742290427,"sku":"022 101 061G-AMC","price":617.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/022-101-061G-A.jpg?v=1756336650"},{"product_id":"new-amc-2-0l-type-4-aircooled-cylinder-head-square","title":"AMC 2.0L Type 4 Aircooled Cylinder Head \"Square Port\"","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new, Cylinder Head for a VW Type 4 2.0L The head comes with Intake and Exhaust Valves, with Keepers, retainers, and springs. Its ready to install. The Head is tapped for the head temp sensor.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.2;\"\u003eEngine: \u003c\/strong\u003eVW Type 4, 2.0L\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.2;\"\u003eYear: \u003c\/strong\u003e1979-83\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.2;\"\u003eCasting: \u003c\/strong\u003eAMC 2.0L \u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.2;\"\u003ePort: \u003c\/strong\u003eSquare\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHead CC:\u003c\/strong\u003e55\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.2;\"\u003eBore: \u003c\/strong\u003eSTD 2.0L, works with VW9400T4, VW9400T4E, VW9600T4S71 and B71 Piston and liner kits\u003c\/p\u003e","brand":"AMC","offers":[{"title":"Default Title","offer_id":742290471,"sku":"071 101 061D-AMC","price":617.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/071-101-061D.jpg?v=1756336648"},{"product_id":"new-amc-2-1l-vanagon-water-box-cylinder-head","title":"AMC 2.1L Vanagon Water Box Cylinder head","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new, Cylinder Head for a VW Vanagon Water Box 1.9 and 2.1L, Head comes with Intake and Exhaust Valves, with Keepers, retainers, and springs. Its ready to install.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.5;\"\u003eEngine:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"line-height: 1.5;\"\u003e2.1L , 1.9 Vanagon\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.5;\"\u003eYear: \u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"line-height: 1.5;\"\u003e1986-91 (2.1)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;\"\u003e\u003cb\u003e\u003cspan style=\"mso-fareast-font-family: 'Times New Roman';\"\u003eYear: \u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"mso-fareast-font-family: 'Times New Roman';\"\u003e1983-85 (1.9)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.5;\"\u003eCasting: \u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"line-height: 1.5;\"\u003eAMC 2.1L\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"line-height: 1.5;\"\u003eBore: \u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"line-height: 1.5;\"\u003eSTD 2.1L works with VW94WB2100 and VW955WB2200 Piston and liner kits\u003c\/span\u003e\u003c\/p\u003e","brand":"AMC","offers":[{"title":"Default Title","offer_id":742290535,"sku":"025 101 065C-AMC","price":603.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/025-101-065C-A.jpg?v=1756336646"},{"product_id":"new-vw-1600-dual-port-high-performance-cylinder-head-40x355-s1-ported","title":"VW 1600 Port \u0026 Polish Stage 1 Cylinder Heads, 40X35.5 \"Pair\"","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new pair of high-performance stage 1 round port cylinder heads for a VW Type 1, 2, or 3 dual port. Heads comes with hand round ports for increased flow and performance with stainless steel 40mm intake and a stainless steel 35.5mm exhaust valves, hardened keepers, chromoly retainers, and dual high-rev springs. They are ready to install.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMade from an AA 500 series casting, these come STD with clean flowing cooling vanes for maximum cooling through the head and around-the-intake ports for increased HP and overall cooling. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThese heads feature:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eA modernized combustion chamber for increased head flow \u0026amp; performance. \u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eA second full fin so you can fly cut your heads deeper to achieve almost any desired head CC volume needed. \u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eBlocked-off rocker stud bosses to eliminate the O-ring and stop possible oil leaks. \u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLong-reach 3\/4\" spark plugs to reduce the chance of cracking between the valve seat and plug.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine: \u003c\/strong\u003eVW Type 1, 2 ,and 3 1600 dual port\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSprings:\u003c\/strong\u003e Dual high-rev springs\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValves: \u003c\/strong\u003e40mm intake by 35.5mm exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAA Performance 500\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlug Size:\u003c\/strong\u003e\u003cspan\u003e 12mm (Replacement NGK number is D8EA)\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e85.5 - works with 85.5,87 and 88 slip-in kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e92 - works with 88 thick wall, 90.5, and 92mm kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e94 - works with 92 thick walls K and M and 94mm kits\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":742294291,"sku":"500 420 XXB-P1 X2","price":793.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/500-420-XX-P1.jpg?v=1756336548"},{"product_id":"new-vw-1600-dual-port-high-performance-cylinder-head-40x355-s1-ported-1","title":"VW 1600 Ported Stage 2 Cylinder Heads, 40X35.5 \"Pair\"","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new Set of 2 High Performance Stage 2 Mini Wedge Port Cylinder Heads for a VW Type 1 2 or 3 Dual Port. Heads comes with Hand Ports for increased Flow and Performance with Stainless Steel 40mm Intake and a Stainless Steel 35.5mm Exhaust Valves, Hardened Keepers, Chromoly retainers, and Dual high rev springs. They are ready to install.\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMade from an AA 500 Series Casting it comes STD with: Clean flowing cooling vanes, for maximum cooling through the head, and around the intake ports for increased HP and over all cooling. Amodernized Combustion chamber, for increased head flow \u0026amp; performance. A second Full Fin, so you can Fly cut your heads deeper to achieve almost any desired Head CC volume needed. Blocked off rocker stud bosses, to eliminate the O-ring and stop possible oil leaks. Long reach 3\/4 Inch Sparkplugs, to reduce the chance of cracking between the Valve seat and Plug\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine: \u003c\/strong\u003eVW Type 1 2 and 3 1600 Dual Port\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSprings:\u003c\/strong\u003eDual High rev\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValves: \u003c\/strong\u003e40mm Intake by 35.5mm Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAA Performance 500\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlug Size:\u003c\/strong\u003e\u003cspan\u003e 12mm (ReplacementNGK Number is D8EA)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e85.5, works with 85.5,87, and 88 slip in kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e92, works with 88 thick wall, 90.5 and 92mm kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e94, works with 92 thick walls K and M, and 94mm kits\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease pick bore size when ordering above\u003c\/strong\u003e\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":742294303,"sku":"500 420 XXB P2 X2","price":839.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/files\/50042085BP2.jpg?v=1756336547"},{"product_id":"dual-high-rev-valve-springs-for-air-cooled-type-1-2-3-heads","title":"Dual High-Rev Valve Springs for VW Type 1, 2, and 3 (Set of 8)","description":"\u003cp\u003e\u003cstrong\u003eBrand new set of 8 Dual High-Rev Springs for increased RPM and Performance. Made from special silicone spring steel.\u003c\/strong\u003e\u003cstrong\u003ePrevent engine damage due to valve float or worn out weak valve springs.They can be used as intake\/exhaust springsin almost any VW Type 1 head casting. Also Used as custom springs in Type 4 Heads with 8mm Valves \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e***Machine Work Required for installing the Inner spring.***\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":742294331,"sku":"031 SS 007 x8","price":55.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/031-SS-007-8.jpg?v=1756336545"},{"product_id":"inner-dual-high-rev-valve-springs-for-vw-type-1-2-and-3-set-of-8","title":"Inner Dual High-Rev Valve Springs for VW Type 1, 2, and 3 (Set of 8)","description":"\u003cp\u003e\u003cstrong\u003e\u003cstrong\u003eBrand new set of 8 Inner Dual High-Rev Springs for increased RPM and Performance. Prevent engine damage due to valve float or worn out weak valve springs. Made from special silicone spring steel. T\u003c\/strong\u003e\u003c\/strong\u003e\u003cstrong\u003ehey can be used as intake\/exhaust springsin almost any VW Type 1 head casting. Also Used as custom springs in Type 4 Heads with 8mm Valves \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note the is the Inner springs only they will not work by themselves.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e***Machine Work Required for installing the Inner spring.***\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":742294363,"sku":"031 SS 006 x8","price":31.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/031-SS-006-X8.jpg?v=1756336543"},{"product_id":"high-chrome-valve-seat","title":"High Chrome Valve Seats Type 1, 2, \u0026 3","description":"\u003cp\u003e\u003cstrong\u003eOur High Chrome Valve Seats come in 6 different sizes. They can be used as intake\/exhaust valve Seats in almost any VW Type 1 head casting.\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e Sizes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e32mm\u003c\/p\u003e\n\u003cp\u003e35.5mm\u003c\/p\u003e\n\u003cp\u003e37.5mm\u003c\/p\u003e\n\u003cp\u003e40mm\u003c\/p\u003e\n\u003cp\u003e42mm\u003c\/p\u003e\n\u003cp\u003e44mm\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e*Please Pick size when ordering above\u003c\/strong\u003e\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"32mm","offer_id":742294507,"sku":"031 VS 320","price":5.95,"currency_code":"USD","in_stock":true},{"title":"35.5mm","offer_id":831237691,"sku":"031 VS 355","price":5.95,"currency_code":"USD","in_stock":true},{"title":"37.5mm","offer_id":831238251,"sku":"031 VS 375","price":4.95,"currency_code":"USD","in_stock":true},{"title":"40mm","offer_id":831239463,"sku":"031 VS 400","price":3.95,"currency_code":"USD","in_stock":true},{"title":"42mm","offer_id":831240075,"sku":"031 VS 420","price":3.95,"currency_code":"USD","in_stock":true},{"title":"44mm","offer_id":831240711,"sku":"031 VS 440","price":3.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/031-VS-320.jpg?v=1756336537"},{"product_id":"valve-keepers","title":"Hardened Valve Keepers Type 1, 2, \u0026 3 (Set of 8)","description":"\u003cp\u003eSet of 8 VW Type 1, 2 or 3 Hardened Valve Keepers \"Good for 1 head\".They come with Standard three slot keeper grooves can be used as intake\/exhaust valve keepers in almost any VW Type 1 head casting,Also Used as custom keepersin Type 4 Heads with 8mm Valves.\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":742294547,"sku":"031 VC 001 X8","price":15.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/031-VC-001.jpg?v=1756336535"},{"product_id":"stock-head-bare","title":"500 Series Type 1 Head \"Bare\/Bare\"","description":"\u003cp\u003e\u003cstrong\u003eAA 500 Series Bare Casting, It is set up to build the performance Head of your needs. It Comes bare with a 12mm plug hole, and with out Seats orGuides.Giving you the the ability to build any possiblecombo Street head you want. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003eThe 500 Series Castings come STD with: Cleanflowingcooling vanes, formaximumcooling through the head, and around the intake ports forincreasedHP and over all cooling. Amodernized Combustionchamber, for increased head flow \u0026amp; performance. AsecondFull Fin, soyou\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003ecanFlycutyourheads deeper to achieve almost any desired Head CC volume needed. Blocked off rocker stud bosses, to eliminate the O-ring and stoppossibleoil leaks. Long reach \u003c\/span\u003e\u003c\/span\u003e\u003cstrong style=\"line-height: 1.2; font-size: 14px;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e3\/4 Inch \u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003eSparkPlugs, toreduce the chance of cracking betweenthe Valve seat and Plug.\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003eCasting: \u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003eAA 500\u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003eValve Size: \u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003eN\/A\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003eHead Bore: \u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e85.5\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003ePlug Size:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e 12mm (ReplacementNGK Number is D8EA)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":832914023,"sku":"031 CH 500","price":199.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/031-CH-500-1.jpg?v=1756336435"},{"product_id":"stock-head-w-seats-and-guides-35-5mm-intake-32mm-exhaust","title":"Dual Port Head with seats and guides 35.5mm Intake 32mm Exhaust","description":"\u003cp\u003e\u003cstrong\u003eStock Head\u003c\/strong\u003e\u003cstrong style=\"line-height: 1.2; font-size: 14px;\"\u003eWith seatsand guides 35.5mm Intake 32mm Exhaust, with a 14mm long reach plug \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.2; font-size: 14px;\"\u003e\u003cstrong\u003eMade from an AA 500 Series Casting itcomes STD with: Cleanflowingcooling vanes, formaximumcooling through the head, and around the intake ports forincreasedHP and over all cooling. Amodernized Combustionchamber, for increased head flow \u0026amp; performance. AsecondFull Fin, soyou\u003cstrong\u003ecanFlycutyourheads deeper to achieve almost any desired Head CC volume needed. Blocked off rocker stud bosses, to eliminate the O-ring and stoppossibleoil leaks. Long reach 3\/4 Inch SparkPlugs, toreduce the chance of cracking betweenthe Valve seat and Plug\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAA 500\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve Size: \u003c\/strong\u003e35.5x32\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHead Bore: \u003c\/b\u003e85.5\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHead CC: \u003c\/strong\u003e54\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlug Size: \u003c\/strong\u003e14mm (Replacement Bosch Number is W8CCor NGKis B5ES.)\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":832929323,"sku":"043 101 355CAA","price":199.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/031-500-420-Front_c0ed9fb5-d412-4d98-b0a4-3acd031d79c1.jpg?v=1756336434"},{"product_id":"stock-head-w-seats-and-guides-40mm-intake-35-5mm-exhaust","title":"Stock Head W\/ seats and guides 40mm Intake 35.5mm Exhaust","description":"\u003cp\u003e\u003cstrong\u003eAA 500 Series Casting\u003c\/strong\u003e\u003cstrong style=\"line-height: 1.2; font-size: 14px;\"\u003eWith seatsand guides40mm Intake 35.5mm Exhaust\u003c\/strong\u003e\u003cstrong\u003e, It is set up to build the performance Head of your needs.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 500Series Castings come STD with: Cleanflowingcooling vanes, formaximumcooling through the head, and around the intake ports forincreasedHP and over all cooling. Amodernized Combustionchamber, for increased head flow \u0026amp; performance. AsecondFull Fin, soyou\u003c\/strong\u003e\u003cstrong\u003ecanFlycutyourheads deeper to achieve almost any desired Head CC volume needed. Blocked off rocker stud bosses, to eliminate the O-ring and stoppossibleoil leaks. Long reach \u003cstrong\u003e3\/4 Inch \u003c\/strong\u003eSparkPlugs, toreduce the chance of cracking betweenthe Valve seat and Plug.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAA 500\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve Size: \u003c\/strong\u003eN\/A\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHead Bore: \u003c\/b\u003e85.5\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlug Size:\u003c\/strong\u003e 12mm (ReplacementNGK Number is D8EA)\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":832931487,"sku":"031 500 420","price":219.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/043-101-355caa-2_83d4a33f-8d89-44cc-a8f5-9d0f5ba969e2.jpg?v=1756336432"},{"product_id":"vw-head-kit-4-exh-studs-2-in-studs-2-rocker-studs","title":"VW 1600 Head Stud Kit, 4 EXH Studs, 2 IN Studs, 2 Rocker Studs","description":"\u003cp\u003e\u003cstrong\u003eVW Type 1 1600 Head Kit. Great for replacing worn out or bad threads on your current Head. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit includes:\u003c\/strong\u003e 4 Exhaust Studs, 2 Intake Studs, and 2 Rocker Studs.\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":836635535,"sku":"031 HS 198","price":10.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/031-HW-198.jpg?v=1756336429"},{"product_id":"vw-stock-valve-retainer","title":"VW Stock 1600  Valve Retainer (Set of 8)","description":"\u003cp\u003e\u003cstrong\u003eBrand new replacement VW 1500\/1600 Stock Valve Retainer. Set of 8\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":836647355,"sku":"031 VR 103 x8","price":23.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/031-VR-103.jpg?v=1756336427"},{"product_id":"performance-head-bare-no-seats","title":"501 Series Performance Type 1 Head Bare No seats","description":"\u003cp\u003e\u003cstrong\u003eAA 501 Series Casting, It is set up to build the performance Head of your needs. It Comes bare with a 12mm plug hole, and with out Seats or Guides. Giving you the the ability to build any possible combo Street\/Drag head you want. Seat Pockets start with the Stock 35.5x32 valve size Configuration and can be machined up to the 44x37.5mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003eThe 501 Series Castings come STD with: Increasedmaterialat the intakesurfacegivingyou theabilityto make much bigger ports. Amodernized Combustionchamber, for increased head flow \u0026amp; performance. AsecondFull Fin, soyou\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003ecanFlycutyourheads deeper to achieve almost any desired Head CC volume needed. Blocked off rocker stud bosses, to eliminate the O-ring and stoppossibleoil leaks. Long reach \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e3\/4 Inch \u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003eSparkPlugs, toreduce the chance of cracking betweenthe Valve seat and Plug.\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003eCasting: \u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003eAA 501\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003eValve Size: \u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003eN\/A\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003eHead Bore: \u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e85.5\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cstrong\u003eHead CC: \u003c\/strong\u003e55cc\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003ePlug Size:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e 12mm (ReplacementNGK Number is D8EA)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":837014303,"sku":"031 CH 501","price":239.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/031-CH-501-Front.jpg?v=1756336426"},{"product_id":"performance-head-w-seats-and-guides-42-intake-37-5-exhaust","title":"501 Series Performance Head W\/ seats and guides 42 Intake 37.5 Exhaust","description":"\u003cp\u003e\u003cstrong\u003eMade from an AA 501 Series Casting, It is set up to build the performance Head of your needs. It Comes with Seats 42x37.5, Guides,with a 12mm plug hole.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003eThe 501 Series Castings come STD with: Increasedmaterialat the intakesurfacegivingyou theabilityto make much bigger ports. Amodernized Combustionchamber, for increased head flow \u0026amp; performance. AsecondFull Fin, soyou\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003ecanFlycutyourheads deeper to achieve almost any desired Head CC volume needed. Blocked off rocker stud bosses, to eliminate the O-ring and stoppossibleoil leaks. Long reach \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e3\/4 Inch \u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003eSparkPlugs, toreduce the chance of cracking betweenthe Valve seat and Plug.\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003eCasting: \u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003eAA 501\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve Size: \u003c\/strong\u003e42x37.5\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHead CC: \u003c\/strong\u003e55cc\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003eHead Bore: \u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e85.5\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003ePlug Size:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e 12mm (ReplacementNGK Number is D8EA)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":837337027,"sku":"031 501 440","price":314.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/031-CH-501-Front_58aa844e-fe39-4f1e-9d55-90fbb6abc078.jpg?v=1756336425"},{"product_id":"performance-head-w-seats-and-guides-44-intake-37-5-exhaust","title":"501 Series Performance Head  W\/ seats and guides 44 Intake 37.5 Exhaust","description":"\u003cp\u003e\u003cstrong\u003eMade from an AA 501 Series Casting, It is set up to build the performance Head of your needs. It Comes with Seats 44x37.5, Guides,with a 12mm plug hole.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 501 Series Castings come STD with: Increasedmaterialat the intakesurfacegivingyou theabilityto make much bigger ports. Amodernized Combustionchamber, for increased head flow \u0026amp; performance. AsecondFull Fin, soyou\u003c\/strong\u003e\u003cstrong\u003ecanFlycutyourheads deeper to achieve almost any desired Head CC volume needed. Blocked off rocker stud bosses, to eliminate the O-ring and stoppossibleoil leaks. Long reach \u003cstrong\u003e3\/4 Inch \u003c\/strong\u003eSparkPlugs, toreduce the chance of cracking betweenthe Valve seat and Plug.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAA 501\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve Size: \u003c\/strong\u003e44x37.5\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHead CC: \u003c\/strong\u003e55cc\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003eHead Bore: \u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e85.5\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003ePlug Size:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e\u003cspan dir=\"auto\" style=\"vertical-align: inherit;\"\u003e 12mm (ReplacementNGK Number is D8EA)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":837338355,"sku":"031 501 460","price":314.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/031-CH-501-Front_8e514974-e1fb-432a-b460-ad3e07eb5f02.jpg?v=1756336423"},{"product_id":"cly-head-40-by-35-5-valves-single-high-rev-85-5-bore","title":"501 Series Performance Heads 40 by 35.5 Valves, Pair","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new Set of 501 High Performance Cylinder Heads for a VW Type 1 2 or 3 Dual Port. Heads comes with Stainless Steel 40mm Intake and a Stainless Steel 35.5mm Exhaust Valves, with Harden Keepers, Chromoly retainers, and Single high rev springs. They are ready to install.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 501 Series Castings come STD with: Increased material at the intake surface giving you the ability to make much bigger ports. A modernized Combustion chamber, for increased head flow \u0026amp; performance. A second Full Fin, so you can Fly cut your heads deeper to achieve almost any desired Head CC volume needed. Blocked off rocker stud bosses, to eliminate the O-ring and stop possible oil leaks. Long reach 3\/4 Inch Spark Plugs, to reduce the chance of cracking between the Valve seat and Plug. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine: \u003c\/strong\u003eVW Type 1 2 and 3 1600 Dual Port\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSprings: \u003c\/strong\u003eSingle or Dual High rev\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValves: \u003c\/strong\u003e40mm Intake by 35.5mm Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAA Performance 501\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlug Size: \u003c\/strong\u003e12mm (ReplacementNGK Number is D8EA)\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong data-mce-fragment=\"1\"\u003eHead CC's:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e55\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e85.5, works with 85.5,87, and 88 slip in kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e92, works with 88 thick wall, 90.5 and 92mm kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e94, works with 92 thick walls K and M, and 94mm kits\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePlease Pick Bore size, and Spring Upgrade when ordering Above\u003c\/strong\u003e\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":846206371,"sku":"501 420 XXB X2","price":793.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/501-460-92B-Front_78e94889-43de-4265-8631-187fe1bb145f.jpg?v=1756336422"},{"product_id":"amc-bare-1-8-casting-type-4-aircooled-round-port","title":"AMC Bare 1.8 Casting Type 4 Aircooled \"Round\" Port","description":"\u003cp\u003e\u003cstrong\u003eAMC Bare 1.8 Casting Type 4 Aircooled \"Round\" Port, build the performance Head of your needs. It Comes bare with out Seats or Guides. Giving you the the ability to build any possible combo Stock or Street head you want. \u003c\/strong\u003e\u003cb\u003eThe 1.8L casting come With a breather pipe, Slightly larger combustion chamber over the 2.0L castings, and still set up with smog holes.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eExhaust Port: \u003c\/b\u003eRound\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"AMC","offers":[{"title":"Default Title","offer_id":849060219,"sku":"004 CH 022B-AMC","price":701.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/004-CH-022B.jpg?v=1756336407"},{"product_id":"amc-bare-2-0-casting-type-4-aircooled-square-port","title":"AMC Bare 2.0 Casting Type 4 Aircooled \"Square\" Port","description":"\u003cp\u003e\u003cstrong\u003eAMC Bare 2.0 Casting Type 4 Aircooled \"Square\" Port, build the performance Head of your needs. It Comes bare with out Seats orGuides.Giving you the the ability to build any possiblecombo Stock or Street head you want.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe 2.0L casting come With out a breather pipe, Slightly smallercombustionchamber over the 1.8L castings, and iswith out smog holes.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eExhaust Port: \u003c\/b\u003eSquare\u003c\/p\u003e","brand":"AMC","offers":[{"title":"Default Title","offer_id":849575119,"sku":"004 CH 071B-AMC","price":669.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/004-CH-071B-1.jpg?v=1756336403"},{"product_id":"amc-bare-2-0-casting-type-4-aircooled-round-port","title":"AMC Bare 2.0 Casting Type 4 Aircooled \"Round\" Port","description":"\u003cp\u003e\u003cstrong\u003eAMC\u003c\/strong\u003e\u003cstrong\u003e\u003cspan\u003e\u003c\/span\u003eBare 2.0 Head Casting, Type 4 Aircooled \"Round\" Port. Sold ea.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuild the performance Head of your needs. It comes bare without Seats orGuides; giving you the ability to build any combo Stock or Street head you want.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 2.0L casting comes without a breather pipe. It has slightly smallercombustionchamber over the 1.8L castings, and comeswithout smog holes.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExhaust Port:\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003eRound\u003c\/p\u003e","brand":"AMC","offers":[{"title":"Default Title","offer_id":849579867,"sku":"004 CH 061B-AMC","price":625.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/004-CH-071B-1_e7bb38bf-6118-4c45-94bf-2d4ac53fa266.jpg?v=1756336401"},{"product_id":"stock-head-single-port-w-seats-and-guides","title":"Stock Head Single Port w\/ Seats and Guides","description":"\u003cp\u003e\u003cstrong\u003eStock Replacement Single Port Head w\/ Seats and Guides\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis single-port casting is an excellent copy of the factory head. It comes with a STD Combustion chamber, and it also takes stock replacement plugs.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAA single port\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve Size:\u003c\/strong\u003e35x32\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHead Bore: \u003c\/b\u003e85.5mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHead cc's: \u003c\/strong\u003e52-54\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlug Size:\u003c\/strong\u003e \u003cspan data-mce-fragment=\"1\"\u003eNGK Spark Plug 14mm 3\/4 Reach\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":942130015,"sku":"311 101 353A","price":229.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/311-101-353A-bare.jpg?v=1756336307"},{"product_id":"copy-of-stock-head-single-port-w-seats-and-guides","title":"Stock Head Single Port Complete","description":"\u003cp\u003e\u003cstrong\u003eStock Replacement Single Port HeadComplete. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis single-port casting is an excellent copy of the factory head. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComes with a STD combustion chamber and 35x32 valves. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTakes stock replacement plugs\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAA Single Port\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve Size:\u003c\/strong\u003e35x32\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHead Bore: \u003c\/b\u003e85.5mm\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHead cc: \u003c\/b\u003e\u003cspan\u003e52-54\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlug Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e 14mm 3\/4 Reach NGK BR7ES\u003c\/span\u003e\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":977077503,"sku":"311 101 353AK","price":294.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/311-101-353A_1ecde8aa-89db-44a3-a6b0-2e2420cde8fd.jpg?v=1756336303"},{"product_id":"vw-1600-port-polish-stage-2-cylinder-heads-42x37-5-pair","title":"VW 1600 Ported Stage 2 Cylinder Heads, 42X37.5 \"Pair\"","description":"\u003cstrong\u003eThis is a brand new Set of 2 High Performance Stage 2 Mini Wedge Port Cylinder Heads for a VW Type 1 2 or 3 Dual Port.Heads comes with Hand Ports for increased Flow and Performance with Stainless Steel 42mm Intake and a Stainless Steel 37.5mm Exhaust Valves,HardenedKeepers, Chromoly retainers, and Dual high rev springs. They are ready to install.\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eMade from an AA 500 Series Casting itcomes STD with: Cleanflowingcooling vanes, formaximumcooling through the head, and around the intake ports forincreasedHP and over all cooling. Amodernized Combustionchamber, for increased head flow \u0026amp; performance. AsecondFull Fin, soyoucanFlycutyourheads deeper to achieve almost any desired Head CC volume needed. Blocked off rocker stud bosses, to eliminate the O-ring and stoppossibleoil leaks. Long reach 3\/4 Inch SparkPlugs, toreduce the chance of cracking betweenthe Valve seat and Plug\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine: \u003c\/strong\u003eVW Type 1 2 and 3 1600 Dual Port\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSprings:\u003c\/strong\u003eDual High rev\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValves: \u003c\/strong\u003e42mm Intake by 37.5mm Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAA Performance 500\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePlug Size:\u003c\/strong\u003e12mm (ReplacementNGK Number is D8EA)\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e85.5, works with 85.5,87, and 88 slip in kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e92, works with 88 thick wall, 90.5 and 92mm kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e94, works with 92 thick walls K and M, and 94mm kits\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease Pick Bore size when ordering Above\u003c\/strong\u003e\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":977162923,"sku":"500 440 XXB P2 X2","price":839.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/files\/50042085BP2_c7adc1c4-5270-490f-b4fe-8eda3e4fea22.jpg?v=1756336302"},{"product_id":"501-series-performance-heads-42-by-37-5-valves-pair","title":"501 Series Performance Heads 42 by 37.5 Valves, Pair","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new Set of 501 High Performance Cylinder Heads for a VW Type 1 2 or 3 Dual Port. Heads comes with Stainless Steel 42mm Intake and a Stainless Steel 35.5mm Exhaust Valves, with Harden Keepers, Chromoly retainers, and Single high rev springs. They areready to install.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 501 Series Castings come STD with: Increased material at the intake surface giving you the ability to make much bigger ports. A modernized Combustion chamber, for increased head flow \u0026amp; performance. A second Full Fin, so you can Fly cut your heads deeper to achieve almost any desired Head CC volume needed. Blocked off rocker stud bosses, to eliminate the O-ring and stop possible oil leaks. Long reach 3\/4 Inch Spark Plugs, to reduce the chance of cracking between the Valve seat and Plug.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine: \u003c\/strong\u003eVW Type 1 2 and 3 1600 Dual Port\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSprings: \u003c\/strong\u003eSingle or Dual High rev\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValves: \u003c\/strong\u003e42mm Intake by 37.5mm Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong data-mce-fragment=\"1\"\u003eHead CC's:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e55\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAA Performance 501\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlug Size: \u003c\/strong\u003e12mm (ReplacementNGK Number is D8EA)\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e85.5, works with 85.5,87, and 88 slip in kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e92, works with 88 thick wall, 90.5 and 92mm kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e94, works with 92 thick walls K and M, and 94mm kits\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePlease Pick Bore size, and Spring Upgrade when ordering Above\u003c\/strong\u003e\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":977244119,"sku":"501 440 XXB X2","price":793.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/501-460-92B-Front_1a25439f-4ad9-4bd1-a585-72cdd7a06b31.jpg?v=1756336300"},{"product_id":"501-series-performance-heads-44-by-37-5-valves-pair","title":"501 Series Performance Heads 44 by 37.5 Valves, Pair","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new Set of 501 High Performance Cylinder Heads for a VW Type 1 2 or 3 Dual Port. Heads comes with Stainless Steel 44mm Intake and a Stainless Steel 37.5mm Exhaust Valves, with Harden Keepers, Chromoly retainers, and Single high rev springs. They areready to install.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 501 Series Castings come STD with: Increasedmaterialat the intakesurfacegivingyou theabilityto make much bigger ports. Amodernized Combustionchamber, for increased head flow \u0026amp; performance. AsecondFull Fin, soyou\u003c\/strong\u003e\u003cstrong\u003ecanFlycutyourheads deeper to achieve almost any desired Head CC volume needed. Blocked off rocker stud bosses, to eliminate the O-ring and stoppossibleoil leaks. Long reach \u003cstrong\u003e3\/4 Inch \u003c\/strong\u003eSparkPlugs, toreduce the chance of cracking betweenthe Valve seat and Plug.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine: \u003c\/strong\u003eVW Type 1 2 and 3 1600 Dual Port\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSprings: \u003c\/strong\u003eSingle or Dual High rev\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValves: \u003c\/strong\u003e44mm Intake by 37.5mm Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAA Performance 501\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlug Size: \u003c\/strong\u003e12mm (ReplacementNGK Number is D8EA)\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong data-mce-fragment=\"1\"\u003eHead CC's:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e55\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e85.5, works with 85.5,87, and 88 slip in kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e92, works with 88 thick wall, 90.5 and 92mm kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e94, works with 92 thick walls K and M, and 94mm kits\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePlease Pick Bore size, and Spring Upgrade when ordering Above\u003c\/strong\u003e\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":977256567,"sku":"501 460 XXB X2","price":793.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/501-460-92B-Front_b7bb5913-d41f-493c-bf1a-e4aa329395e9.jpg?v=1756336298"},{"product_id":"1-25-ratio-rockers-type-1","title":"Performance 1.25 Ratio Rockers Type 1","description":"\u003cstrong\u003eThese superior quality chromoly rockers are just the answer for either a mild street or high-performance VW type 1,2, and 3 engine. Rocker arms are made from forged chromoly and then precision ground and heat treated. They are also drilled through on the alloy adjusting screws, so both screws and rockers arms are fully lubricated. All shafts, blocks, and shims are high strength alloy as well. Precision ground bronze bushings with through hole lubrication ensures that premature failure of the old needle bearing rocker arm design is a thing of the past. Chromoly rocker arm studs are provided to complete this kit and make installation and use a trouble free experience.\u003c\/strong\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":1106732879,"sku":"109456B","price":146.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/Rocker-2.jpg?v=1756336255"},{"product_id":"vw-type-4-performance-cylinder-heads-42x36-pair","title":"Set of AMC VW Type 4 Porsche 914 Performance Cylinder Heads, 42X36, Round Port","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new Set of 2 High Performance Cylinder Heads for a VW Type 4 \u0026amp; Porsche 914 1.8L . Heads comes with Stainless Steel 42mm Intake and a Stainless Steel 36mm Exhaust Valves, with Harden Keepers, Chromoly retainers, and Single high rev springs. They areready to install.\u003c\/strong\u003e\u003cstrong\u003eMade from an AMC 1.8L type 4 Casting with Breather using 8mm valve stems it is available with Single high rev springs. The heads can also be opened to 103 to accommodate the larger bore sizes.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine: \u003c\/strong\u003eVW Type 4 \/ Porsche 914 1.8L\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSprings: \u003c\/strong\u003eSingle high rev\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValves: \u003c\/strong\u003e42mm Intake by 36mm Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAMC 1.8L\u003cspan\u003eRound Port\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlug Size:\u003c\/strong\u003e14mm (Replacement Bosch Number is W8CCor NGKis B5ES.)\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e94, works with 94 \u0026amp; 96mm Kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e103works with103, 104, \u0026amp; 105mm Kits\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease Pick Bore size, when ordering Above\u003c\/strong\u003e\u003c\/p\u003e","brand":"AMC","offers":[{"title":"94 Bore","offer_id":1106810371,"sku":"022 445 94B-AMC X2","price":2167.9,"currency_code":"USD","in_stock":true},{"title":"103 Bore","offer_id":1176116331,"sku":"022 445 103B-AMC X2","price":2293.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/Type-4-Heads.jpg?v=1756336253"},{"product_id":"vw-type-4-porsche-914-performance-cylinder-heads-44x36-pair","title":"Set of AMC VW Type 4 Porsche 914 Performance Cylinder Heads, 44X36, Round Port","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new Set of 2 High Performance Cylinder Heads for a VW Type 4 \u0026amp; Porsche 914 1.8L . Heads comes with Stainless Steel 44mm Intake and a Stainless Steel 36mm Exhaust Valves, with Harden Keepers, Chromoly retainers, and Single high rev springs. They areready to install.\u003c\/strong\u003e\u003cstrong\u003eMade from an AMC 1.8L type 4 Casting with Breather using 8mm valve stems it is available with single High rev springs. The heads can also be opened to 103 to accommodate the larger bore sizes.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine: \u003c\/strong\u003eVW Type 4 \/ Porsche 914 1.8L\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSprings: \u003c\/strong\u003eSingle High rev\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValves: \u003c\/strong\u003e44mm Intake by 36mm Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAMC 1.8L\u003cspan\u003eRound Port\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlug Size:\u003c\/strong\u003e14mm (Replacement Bosch Number is W8CCor NGKis B5ES.)\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e94, works with 94 \u0026amp; 96mm Kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e103works with103, 104, \u0026amp; 105mm Kits\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease Pick Bore size, when ordering Above\u003c\/strong\u003e\u003c\/p\u003e","brand":"AMC","offers":[{"title":"94 Bore","offer_id":1176148795,"sku":"022 450 94B-AMC X2","price":2167.9,"currency_code":"USD","in_stock":true},{"title":"103 Bore","offer_id":1176148799,"sku":"022 450 103B-AMC X2","price":2293.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/Type-4-Heads_8ff2d07e-407e-4b5a-ad60-1d5753863186.jpg?v=1756336185"},{"product_id":"porsche-914-2-0l-performance-cylinder-heads-44x36-pair","title":"Set of Porsche 914 2.0L AMC Performance Cylinder Heads, 44X36","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new Set of 2 High Performance Cylinder Heads for a Porsche 9142.0L The stock Spark plug holes will be Welded up and relocated to the 914 2.0L position. A 4 stud intake Manifold will be required. Heads comes with Stainless Steel 44mm Intake and a Stainless Steel 36mm Exhaust Valves, with Harden Keepers, Chromoly retainers, and Single high rev springs. They areready to install.\u003c\/strong\u003e\u003cstrong\u003eMade from an AMC 1.8L type 4 Casting with Breather using 8mm valve stems it is available with single high rev springs. The heads can also be opened to 103 to accommodate the larger bore sizes.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine: \u003c\/strong\u003ePorsche 914 2.0L\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSprings: \u003c\/strong\u003eSingle or Dual High rev\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValves: \u003c\/strong\u003e44mm Intake by 36mm Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAMC 2.0L-914\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlug Size:\u003c\/strong\u003e\u003cspan\u003e14mm (Replacement Bosch Number is W8CCor NGKis B5ES.)\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e94, works with 94 \u0026amp; 96mm Kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e103works with103, 104, \u0026amp; 105mm Kits\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePlease Pick Bore size, when ordering Above\u003c\/strong\u003e\u003c\/p\u003e","brand":"AMC","offers":[{"title":"94 Bore","offer_id":1176156547,"sku":"039 450 94B-AMC X2","price":2135.9,"currency_code":"USD","in_stock":true},{"title":"103 Bore","offer_id":1176156551,"sku":"039 450 103B-AMC X2","price":2249.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/Type-4-Heads_c0a47216-a699-4e75-a4d2-306c183507db.jpg?v=1756336184"},{"product_id":"vw-performance-titanium-valve-retainer-set-of-8","title":"VW Performance Chromoly Valve Retainer (Set of 8)","description":"\u003cp\u003e\u003cstrong\u003eBrand new set of 8 \u003cspan\u003eChromoly V\u003c\/span\u003ealve Retainers. T\u003c\/strong\u003e\u003cstrong\u003ehese retainers are machined to exact tolerances.\u003c\/strong\u003e\u003cstrong\u003eWill work great with both dual and single spring,They can be used as intake\/exhaust retainers in almost any VW Type 1 head casting. Also Used as custom retainersin Type 4 Heads with 8mm Valves.\u003c\/strong\u003e\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"Default Title","offer_id":1853513795,"sku":"031 VR 503CK x8","price":27.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/files\/Chromolyretainer.jpg?v=1756336083"},{"product_id":"amc-head-48-by-38-valves-dual-high-rev-stage-2-p-p","title":"Set of AMC Type 4 Porsche 914 Heads 48 by 38 Valves, Round Port, Dual High-Rev, Stage 2 P\u0026P","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new (Set of 2) Stage 2 Port and Polished High Performance Cylinder Heads for a VW Type 4 \u0026amp; Porsche 914 1.8L Type 4 Bus.\u003c\/strong\u003e\u003cstrong\u003eHeads comes with stainless steel 48mm intake and a stainless steel 38mm exhaust valves, with harden keepers, chromoly retainers, and dual high rev springs.\u003c\/strong\u003e\u003cstrong\u003eThey areready to install.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMade from an AMC 1.8L type4 casting with breather using 8mm valvestems.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe heads can also be opened to 103 to accommodate the larger bore sizes.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eEngine: \u003c\/strong\u003eVW Type 4 \/ Porsche 914 1.8L\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSprings: \u003c\/strong\u003eDual High Rev\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValves: \u003c\/strong\u003e48mm Intake by 38mm Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAMC 1.8L\u003cspan\u003eRound Port\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlug Size:\u003c\/strong\u003e14mm (Replacement Bosch Number is W8CCor NGKis B5ES.)\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e94, works with 94 \u0026amp; 96mm Kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e103works with103, 104, \u0026amp; 105mm Kits\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003ePlease Pick Bore size, and Spring Upgrade when ordering Above\u003c\/strong\u003e\u003c\/p\u003e","brand":"AMC","offers":[{"title":"94\/96 Stage 2","offer_id":18500660483,"sku":"022 455 94B P2-AMC X2","price":3773.9,"currency_code":"USD","in_stock":true},{"title":"103-105 Stage 2","offer_id":18500660547,"sku":"022 455 103B P2-AMC X2","price":3773.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/022-455-XXX-P1.jpg?v=1756336020"},{"product_id":"amc-head-50-by-40-valves-dual-high-rev-stage-2-p-p-set-of-2","title":"Set of AMC Head 50 by 40 Valves, Dual High-Rev, Stage 2 P\u0026P","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new (Set of 2) Stage 2 Port and Polished High Performance Cylinder Heads for a Porsche 9142.0L or Type 4 Bus\/ Porsche 1.8L On the Porsche 2.0LThe Stock Spark plug holes will be welded up and relocated to the 914 2.0L position for that application.A 4 stud intake manifold will be required. Heads comes with stainless steel 50mm intake and a stainless steel 40mm exhaust valves, with harden keepers, chromoly retainers, and dual high rev springs.They areready to install.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMade from an AMC 1.8L type4 casting with breather using 8mm valvestems .\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe heads can also be opened to 103 to accommodate the larger bore sizes.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eEngine: \u003c\/strong\u003ePorsche 914 2.0L \/ Type 4, BusPorsche1.8L\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSprings: \u003c\/strong\u003eDual High Rev\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValves: \u003c\/strong\u003e50mm Intake by 40mm Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAMC 1.8L\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlug Size:\u003c\/strong\u003e14mm (Replacement Bosch Number is W8CCor NGKis B5ES.)\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e103works with103, 104, \u0026amp; 105mm Kits\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003ePlease Pick Bore size, and Spring Upgrade when ordering Above\u003c\/strong\u003e\u003c\/p\u003e","brand":"AMC","offers":[{"title":"103-105 Stage 2","offer_id":18502085827,"sku":"022 470 103B P2-AMC X2","price":3887.9,"currency_code":"USD","in_stock":true},{"title":"914 Plug Location 103-105 Stage 2","offer_id":18502128835,"sku":"039 470 103B P2-AMC X2","price":3653.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/022-455-XXX-P1_2a47159e-a65a-4c97-9962-6850df6772d7.jpg?v=1756336017"},{"product_id":"cylinder-head-42-x-37-5-dual-high-rev-stage-2-port-polish","title":"Set of AA Cylinder Head 42 x 37.5 Dual High-Rev, Stage 2 Ported","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new (Set of 2) Stage 2 Ported High Performance Cylinder Heads, 42 x 37.5 Dual High-Rev.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease Pick Bore size, when ordering Above.\u003c\/strong\u003e\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"85 Bore","offer_id":31349390979,"sku":"500 440 85B P2 X2","price":839.9,"currency_code":"USD","in_stock":true},{"title":"92 Bore","offer_id":31349391107,"sku":"500 440 92B P2 X2","price":879.9,"currency_code":"USD","in_stock":true},{"title":"94 Bore","offer_id":31349391235,"sku":"500 440 94B P2 X2","price":879.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/files\/50042085BP2_97b2fbea-f078-4247-a7ef-3be082423783.jpg?v=1756335959"},{"product_id":"amc-type-4-head-48-x-38-valves-dual-high-rev-stage-1-p-p","title":"Set of AMC Type 4 Porsche 914 Heads 48 x 38 Valves, Round Port, Dual High-Rev Stage 1 P\u0026P","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new (Set of 2) Stage 1 Port and Polished High Performance Cylinder Heads for a VW Type 4 \u0026amp; Porsche 914 1.8L Type 4 Bus.Heads comes with stainless steel 48mm intake and a stainless steel 38mm exhaust valves, with harden keepers, chromoly retainers, and dual high rev springs.They areready to install.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMade from an AMC 1.8L type4 casting with breather using 8mm valvestems .\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe heads can also be opened to 103 to accommodate the larger bore sizes.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine: \u003c\/strong\u003e VW Type 4 \/ Porsche 914 1.8L\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSprings: \u003c\/strong\u003eDual High Rev\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValves: \u003c\/strong\u003e48mm Intake by 38mm Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAMC 1.8L\u003cspan\u003eRound Port\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlug Size:\u003c\/strong\u003e14mm (Replacement Bosch Number is W8CCor NGKis B5ES.)\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e94, works with 94 \u0026amp; 96mm Kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e103works with103, 104, \u0026amp; 105mm Kits\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease Pick Bore size, when ordering Above\u003c\/strong\u003e\u003c\/p\u003e","brand":"AMC","offers":[{"title":"94\/96","offer_id":31435415235,"sku":"022 455 94B P1-AMC X2","price":3559.9,"currency_code":"USD","in_stock":true},{"title":"103\/105","offer_id":31435415299,"sku":"022 455 103B P1-AMC X2","price":3559.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/022-455-94-103B-P1SIDE.jpg?v=1756335956"},{"product_id":"amc-type-4-head-48-x-38-914-plug-dual-high-rev-stage-1-p-p","title":"Set of Porsche 914 2.0L AMC Performance Cylinder Heads, 48x38 Stage 1 P\u0026P","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new (Set of 2) Stage 1 Port and Polished High Performance Cylinder Heads for a Porsche 9142.0L The stock Spark plug holes will be Welded up and relocated to the 914 2.0L position. A 4 stud intake Manifold will be required. \u003c\/strong\u003e\u003cstrong\u003eHeads comes with stainless steel 48mm intake and a stainless steel 38mm exhaust valves, with harden keepers, chromoly retainers, and dual high rev springs.\u003c\/strong\u003e\u003cstrong\u003eThey areready to install.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMade from an AMC 1.8L type4 casting with breather using 8mm valvestems .\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe heads can also be opened to 103 to accommodate the larger bore sizes.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine: \u003c\/strong\u003ePorsche 914 2.0L\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSprings: \u003c\/strong\u003eDual High Rev\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValves: \u003c\/strong\u003e48mm Intake by 38mm Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting: \u003c\/strong\u003eAMC 1.8L\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlug Size:\u003c\/strong\u003e\u003cspan\u003e14mm (Replacement Bosch Number is W8CCor NGKis B5ES.)\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e94, works with 94 \u0026amp; 96mm Kits\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBore: \u003c\/strong\u003e103works with103, 104, \u0026amp; 105mm Kits\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePlease Pick Bore size, when ordering Above\u003c\/strong\u003e\u003c\/p\u003e","brand":"AMC","offers":[{"title":"94\/96","offer_id":31436082499,"sku":"039 455 94B P1-AMC X2","price":3363.9,"currency_code":"USD","in_stock":true},{"title":"103-105","offer_id":31436082563,"sku":"039 455 103B P1-AMC X2","price":3363.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/022-455-94-103B-P1_f5a1ab45-b628-4709-9196-c1eacc44972f.jpg?v=1756335954"},{"product_id":"chromoly-head-stud-kit","title":"Chromoly Head Stud Kit","description":"\u003cp\u003e\u003cstrong\u003eChromoly Head Stud Kit are made from high-grade Chromoly and precision machined to resist stretch and fatigue. AA Chromoly Case Studs are available with 8mm or 10mm threads, stock length. Each kit is complete with O.E style hardened washers and hex nuts.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease pick size above:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e8mm\u003c\/li\u003e\n\u003cli\u003e10mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AA Performance Products","offers":[{"title":"8mm","offer_id":31448273539,"sku":"101029B","price":58.95,"currency_code":"USD","in_stock":true},{"title":"10mm","offer_id":31448273603,"sku":"101028B","price":75.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/101029B.jpg?v=1756335949"},{"product_id":"chromoly-head-stud-kit-1-2-inch-longer","title":"Chromoly Head Stud Kit 1\/2 Inch Longer","description":"\u003cp\u003e\u003cstrong\u003eChromoly case studs provide superior and even clamping force required by today's hi-performance VW engines. Chromoly studs are made from high-grade Chromoly and precision machined to resist stretch and fatigue. Comes with complete O.E. style hardened washers and hex nuts\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChromoly Head Stud Kit 1\/2 Inch Longer\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease pick size above:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e8mm\u003c\/li\u003e\n\u003cli\u003e10mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AA Performance Products","offers":[{"title":"8mm","offer_id":31486961027,"sku":"101029LB","price":75.95,"currency_code":"USD","in_stock":false},{"title":"10mm","offer_id":31486961091,"sku":"101028LB","price":75.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/101-028-29LB.jpg?v=1756335942"},{"product_id":"toyota-22r-22re-stainless-steel-valve","title":"Toyota 22R\/22RE Stainless Steel Valve","description":"\u003cp\u003e\u003cstrong\u003eBrand New High Quality Toyota 22R\/22RE Stainless Steel Valves\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSizes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e45mm Intake\u003c\/li\u003e\n\u003cli\u003e37mm Exhaust\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorks with:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e81-95 Toyota Pickup 2.4L (2366cc) SOHC L4 8V\u003c\/p\u003e\n\u003cp\u003e85-95 Toyota 4 Runner 2.4L SOHC L4 8V 22REC\u003c\/p\u003e\n\u003cp\u003e81-82 Toyota Celica2.4L SOHC L4 8V 22R\u003c\/p\u003e\n\u003cp\u003e85  Toyota Celica 2.4L SOHC L4 8V 22REC\u003c\/p\u003e\n\u003cp\u003e81-82  Toyota Corona 2.4L SOHC L4 8V 22R\u003c\/p\u003e\n\u003cp\u003e81-82  Toyota Pickup 2.4L SOHC L4 8V 22R\u003c\/p\u003e\n\u003cp\u003e85-95  Toyota Pickup 2.4L SOHC L4 8V 22R, 22REC\u003c\/p\u003e","brand":"AA Performance Products","offers":[{"title":"45mm","offer_id":32013772035,"sku":"137 SV 450","price":18.95,"currency_code":"USD","in_stock":true},{"title":"37mm","offer_id":32013772099,"sku":"137 SV 370","price":17.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5353\/products\/137-SV-450-370.jpg?v=1756335926"}],"url":"https:\/\/aapistons.com\/collections\/cylinder-heads-components\/aa-performance.oembed?page=7","provider":"AA Performance Products Inc.","version":"1.0","type":"link"}