{"product_id":"tsp-prc-247cc-cnc-ported-cathedral-port-cylinder-heads-pair-assembled","title":"TSP PRC 247cc CNC Ported Cathedral Port Cylinder Heads PAIR - Assembled","description":"\u003cp\u003e\u003cstrong\u003eTSP PRC 247cc CNC Ported Cathedral Port 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\u003ePrecision Race Components (PRC) all new cylinder head castings completed with 247cc runners. For 408 cubic inch and larger applications with 4.030\"+ bore sizing.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe all new 247cc cylinder head is finally available for customers looking for the pinnacle of LS cathedral port performance. The new 247cc port has been flow bench tested to flow over 360cfm. \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\u003e247cc Fully CNC Ported Intake Runners\u003c\/li\u003e\n\u003cli\u003e84cc Fully CNC Ported Exhaust Runners\u003c\/li\u003e\n\u003cli\u003e3\/4\" Deck Thickness\u003c\/li\u003e\n\u003cli\u003eWill accept up to 1\/2\" Cylinder Head Hardware\u003c\/li\u003e\n\u003cli\u003eTSP .660 Spring Kit w\/ PAC Valve Springs \u0026amp; Titanium Retainers\u003c\/li\u003e\n\u003cli\u003e68cc CNC Machined Chambers\u003c\/li\u003e\n\u003cli\u003eCHE Bronze Guides\u003c\/li\u003e\n\u003cli\u003e2.120\" Hollow Stem Intake Valves\/ 1.600\" Stainless Exhaust Valves\u003c\/li\u003e\n\u003cli\u003eFactory Rocker Friendly!!\u003c\/li\u003e\n\u003cli\u003eMinimum Bore Dia: 4.030\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan\u003e\u003cbr\u003e\u003c\/span\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 247cc CNC Ported Flow Data (No Exhaust Pipe):\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.100\"\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e66 cfm\u003c\/td\u003e\n\u003ctd\u003e57 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.200\"\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e147 cfm\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd\u003e117 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\"\u003e228 cfm\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd\u003e170 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\"\u003e282 cfm\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd\u003e206 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.500\"\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e321 cfm\u003c\/td\u003e\n\u003ctd\u003e227 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.600\"\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e343 cfm\u003c\/td\u003e\n\u003ctd\u003e235 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.650\"\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e355 cfm\u003c\/td\u003e\n\u003ctd\u003e241 cfm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e.700\"\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e360 cfm\u003c\/td\u003e\n\u003ctd\u003e245 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":45631420858566,"sku":"PRC-SS247CNC","price":2949.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2716\/4086\/files\/texas-speed-performance-tsp-prc-247cc-cnc-ported-408-ci-style-cathedral-port-heads-pair-assembled-1227556663.png?v=1773785408","url":"https:\/\/www.glennsautoperformance.com\/products\/tsp-prc-247cc-cnc-ported-cathedral-port-cylinder-heads-pair-assembled","provider":"Glenn's Auto Performance","version":"1.0","type":"link"}