{"product_id":"502-series-performance-heads-42-by-37-5-valves-pair","title":"502 Series Performance Heads 42 by 37.5 Valves, Pair","description":"\u003cp\u003e\u003cstrong\u003eThis is a brand new Set of 502 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 37.5mm 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\u003eThe 502 Series comes ported for you with a modernized combustion chamber for increased head flow \u0026amp; performance. There is 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\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 502\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":46603297095870,"sku":"502 440 XXB S1 X2","price":839.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/6323\/0398\/files\/502-420-85B_872f4e47-aac2-47d2-9039-8193e5ea03ab.jpg?v=1776107779","url":"https:\/\/gex-international.myshopify.com\/products\/502-series-performance-heads-42-by-37-5-valves-pair","provider":"GEX_AA Performance","version":"1.0","type":"link"}