{"product_id":"aeroflow-af95-0427-bbc-396-427-454-pair-bare-alloy-cylinder-heads-315cc","title":"Aeroflow AF95-0427 BBC 396 427 454 *(Pair)* Bare Alloy Cylinder Heads 315CC","description":"\u003cp\u003eAeroflow's big block Chevy cylinder heads are designed for entry-level street performance engines and ideal for operating in the idle to 6750 rpm range. Made from A356 aluminium castings. These complete heads include larger than-stock 1.625\" (41mm) diameter valve spring with damper to handle up to 0.850\" (21.5mm) maximum valve lift. Recommended spark plugs are 14mm x 3\/4\" reach with flat gasket seat.\u003c\/p\u003e\u003cstrong\u003eHead Specs:\u003c\/strong\u003e\u003cbr\u003eChamber volume: 121cc Chamber \u003cbr\u003eIntake port volume: 315cc\u003cbr\u003eIntake valve size: 2.25\" \u003cbr\u003eExhaust valve size: 1.88\"\u003cbr\u003eValve spring diameter: Single spring with damper 1.625\" (41mm) \u003cbr\u003eSpring installed height: 2.08\" @ 100lbs \u003cbr\u003eMaximum valve lift: 0.850\" @ 275lbs \u003cbr\u003eRocker stud diameter: 7\/16\" \u003cbr\u003ePushrod diameter: 3\/8\" (width of slot in guide plate)\u003cbr\u003eSpark plug style: Straight\u003cbr\u003eMax RPM: 7400-7600\u003cbr\u003e \u003cbr\u003e\u003cstrong\u003eFlow Chart cfm @ H2O\u003c\/strong\u003e\u003ctable width=\"550\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ctr\u003e \u003ctd width=\"130\"\u003e \u003c\/td\u003e \u003ctd width=\"70\"\u003e.200\"\u003c\/td\u003e \u003ctd width=\"70\"\u003e.300\"\u003c\/td\u003e \u003ctd width=\"70\"\u003e.400\"\u003c\/td\u003e \u003ctd width=\"70\"\u003e.500\"\u003c\/td\u003e \u003ctd width=\"70\"\u003e.600\"\u003c\/td\u003e \u003ctd width=\"70\"\u003e.700\"\u003c\/td\u003e \u003ctd width=\"70\"\u003e.800\"\u003c\/td\u003e \u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2.25 Intake\u003c\/td\u003e\n\u003ctd\u003e167\u003c\/td\u003e\n\u003ctd\u003e 246\u003c\/td\u003e\n\u003ctd\u003e311\u003c\/td\u003e\n\u003ctd\u003e 351\u003c\/td\u003e\n\u003ctd\u003e380\u003c\/td\u003e\n\u003ctd\u003e 385\u003c\/td\u003e\n\u003ctd\u003e385\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e \u003ctd\u003e1.88 Exhaust\u003c\/td\u003e\n\u003ctd\u003e142\u003c\/td\u003e\n\u003ctd\u003e 183\u003c\/td\u003e\n\u003ctd\u003e236\u003c\/td\u003e\n\u003ctd\u003e 270\u003c\/td\u003e\n\u003ctd\u003e294\u003c\/td\u003e\n\u003ctd\u003e 310\u003c\/td\u003e\n\u003ctd\u003e 313\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cbr\u003e\u003cbr\u003e","brand":"Aeroflow Performance Products","offers":[{"title":"Default Title","offer_id":44606065770807,"sku":"AF95-0427","price":2176.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/9364\/1015\/files\/17827.jpg?v=1780857622","url":"https:\/\/enginemaster.com.au\/products\/aeroflow-af95-0427-bbc-396-427-454-pair-bare-alloy-cylinder-heads-315cc","provider":"Engine Master","version":"1.0","type":"link"}