{"product_id":"tsp-prc-as-cast-cnc-ported-ls3-style-6-boltheads-pair-assembled","title":"TSP PRC As-Cast 257cc CNC Ported LS3 Style 6-Bolt Cylinder Heads PAIR - Assembled","description":"\u003cp\u003e\u003cstrong\u003eTSP PRC As-Cast 257cc CNC Ported LS3 Style 6-Bolt Cylinder Heads PAIR w\/ TSP .660\" Spring Kit and Titanium Retainers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003ePrecision Race Components (PRC) all new LS3 as-cast cylinder heads completed with CNC machined chambers \u0026amp; valve guides. For LS3\/L99\/L92\/LSA\/LS9 applications requiring a high flow aftermarket cylinder head at a competitive price!\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe all new PRC LS3 As-Cast cylinder heads are now available for customers looking for the ultimate as-cast LS3 cylinder heads available.  The new PRC as-cast intake port has been flow bench tested to flow 369 CFM \u0026amp; can support everything from smaller camshaft street engines all the way to all out race engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMADE IN THE USA!!\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eCAST IN THE USA!!\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eMACHINED IN THE USA!!\u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eAs-Cast 257cc Intake Runners With CNC Machined Chambers \u0026amp; Valve Guides For Unmatched Flow!\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e68cc CNC Machined Chambers\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThicker Deck Surface Makes Them Ideal For Power-Adder Applications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e3\/4\" Deck Thickness\u003c\/li\u003e\n\u003cli\u003eWill accept up to 1\/2\" Cylinder Head Hardware\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRelocated valves with 13° Valve Angles\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2.170\" Hollow Stem Stainless Intake\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eValves \u003c\/span\u003e\/ 1.600\" Stainless Exhaust Valves\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUtilizes Factory Rocker Arms\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eTSP .660 Spring Kit w\/ PAC Valve Springs \u0026amp; Titanium Retainers\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMinimum Bore Dia: 4.000\"\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ctable align=\"center\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"4\"\u003e\u003cstrong\u003e As-Cast 257cc CNC Ported LS3 Flow Data \u003cspan\u003e(\u003c\/span\u003e\u003cspan\u003e4.00\" Flow Plate - No Exhaust Pipe):\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLift\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eIntake Flow\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd\u003eExhaust Flow\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e153 cfm\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd\u003e114 cfm\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.300\"\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e233 cfm\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd\u003e163 cfm\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.400\"\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e287 cfm\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd\u003e191 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e329 cfm\u003c\/td\u003e\n\u003ctd\u003e214 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e357 cfm\u003c\/td\u003e\n\u003ctd\u003e228 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.650\"\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e369 cfm\u003c\/td\u003e\n\u003ctd\u003e233 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Texas Speed \u0026 Performance","offers":[{"title":"Default Title","offer_id":45631434096838,"sku":"PRC-SSLs3AC","price":2299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2716\/4086\/files\/texas-speed-performance-tsp-prc-as-cast-cnc-ported-ls3-style-6-boltheads-pair-assembled-1227556662.png?v=1773785348","url":"https:\/\/www.glennsautoperformance.com\/products\/tsp-prc-as-cast-cnc-ported-ls3-style-6-boltheads-pair-assembled","provider":"Glenn's Auto Performance","version":"1.0","type":"link"}