{"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":46603709546686,"sku":"031 CH 501","price":239.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/6323\/0398\/files\/031-CH-501-Front.jpg?v=1776113832","url":"https:\/\/gex-international.myshopify.com\/products\/performance-head-bare-no-seats","provider":"GEX_AA Performance","version":"1.0","type":"link"}