{"product_id":"btr-canted-valve-ls-cylinder-head-ls3-6-bolt-porters-casting-btr-cvh3p-6u","title":"BTR CANTED VALVE LS CYLINDER HEAD - LS3 6 BOLT - PORTERS CASTING - BTR-CVH3P-6U","description":"\u003cp id=\"JKRDB7X\" style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cstrong\u003eBTR CANTED VALVE LS CYLINDER HEAD - LS3 6 BOLT - PORTERS CASTING - BTR-CVH3P-6U\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003eWhat happens when you combine two lifetimes of cylinder head research and development? The BTR CV cylinder head for LS! When you have a cylinder head casting legend like Rick Smith on board (Father of the Hi-Port, A460, Twisted Wedge and more!) and decades of Brian Tooley's porting \u0026amp; cylinder head flow bench experience, you end up with serious game-changing performance!\u003c\/p\u003e \u003cp\u003eThere’s no other low-cost premium cast all-American canted-valve LS cylinder head on the market! By rotating the intake 5° and exhaust 3°, we’ve seen over 360+ CFM of intake flow… at only .650” lift with our in-house port program! We put NASCAR-proven canted valve tech into the LS head and made it attainable. These heads use regular Gen 3 \u0026amp; 4 LS1 pedestal type rockers \u0026amp; bolts, valve covers \u0026amp; manifolding… and use Gen V LT valves, spark plugs and valve spring packages to make building them out EASY with OEM-compatible parts! If you have a street machine or a racing class that allows a canted valve head, this is the advantage you’ve been waiting for.\u003c\/p\u003e \u003cp\u003eThis cylinder head ships partially machined with finished valve guides and unfinished valve seats installed for cylinder head porters to customize for their application. Valves, springs \u0026amp; valve spring hardware are not included. Final port sizing, chamber sizing, decking and other parameters are at the cylinder head builders’ discretion.\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cul\u003e \u003cli\u003eBTR exclusive canted-valve design allows for maximum valve unshrouding and sizing - Cathedral fits a 3.780\" bore, LS3 style fits a 3.820\" bore!\u003c\/li\u003e \u003cli\u003e11° intake (5° canted) and 13° exhaust (3° canted)\u003c\/li\u003e \u003cli\u003eCast in Iowa - Designed, tested, machined \u0026amp; sold in Kentucky!\u003c\/li\u003e \u003cli\u003eIntake flow - Over 360 CFM at .650” when used with BTR’s port program!\u003c\/li\u003e \u003cli\u003eUses OEM LT1 2.125” steel hollow-stem intake and 1.590” steel exhaust valves\u003c\/li\u003e \u003cli\u003eLT4 Ti intake and L8T Inconel™ exhaust valves can also be used with lash caps\u003c\/li\u003e \u003cli\u003eSuperior OEM-type powdered metal guides\u003c\/li\u003e \u003cli\u003eUtilizes OEM-style straight LS1 pedestal rockers, OEM-style intake \u0026amp; exhaust manifolds, and LS-style valve covers\u003c\/li\u003e \u003cli\u003eUses Gen V LT style long reach spark plugs and valve spring kits up to 1.350” O.D. spring\u003c\/li\u003e \u003cli\u003eClears 3\/8” pushrods – Typical length intake 7.925-8.025” \u0026amp; exhaust 7.900-8.000”\u003c\/li\u003e \u003cli\u003eExtra-thick .750” boost-friendly deck in popular “6-bolt” configuration\u003c\/li\u003e \u003cli\u003eBTR \/ Wiseco Canted-Valve specific pistons available for most popular LS applications\u003c\/li\u003e \u003cli\u003eMultiple Patents Pending!\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003eINSTALLATION NOTES – \u003cspan style=\"color: rgb(186, 55, 42);\"\u003e\u003cstrong\u003eThese are porter’s castings and are not intended for out of box use.\u003c\/strong\u003e\u003c\/span\u003e Extra material (.100”+)  will need to be removed from chambers and runners to final port \u0026amp; chamber shape. Finished deck milling will be required. Valve seat cutting \u0026amp; finishing required. Uses LS1 rocker bolts. M10x1.5 Accessory hole commonly used for dipstick is shallower than OEM to prevent water jacket intrusion, please check your dipstick bolt prior to final assembly. Like many aftermarket heads, a sealant will be required on intake rocker bolt threads that intersect the port. ALWAYS VERIFY NEVER ASSUME all engine clearances before final assembly. \u003c\/p\u003e\u003cp\u003eFeatures:\u003c\/p\u003e\u003ctable class=\"data table additional-attributes\" id=\"product-attribute-specs-table\"\u003e \u003ccaption class=\"table-caption\"\u003eFeatures\u003c\/caption\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eEMS Code\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"EMS Code\"\u003eEMS: Code 3\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eBTR SKU\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"BTR SKU\"\u003eBTR-CVH3P-6U\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eLength\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"Length\"\u003e24.000000\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eWidth\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"Width\"\u003e13.000000\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eHeight\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"Height\"\u003e11.000000\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eWeight\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"Weight\"\u003e26.000000\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eBrand\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"Brand\"\u003eBrian Tooley Racing\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003ePart Type\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"Part Type\"\u003eBare Cylinder Heads\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eIntake Port Style\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"Intake Port Style\"\u003eLS3\/L99 - SQUARE PORT\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eBolt Count\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"Bolt Count\"\u003e6-BOLT\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eIntake Runner Volume\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"Intake Runner Volume\"\u003ePORTER CASTING\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eGuide Material\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"Guide Material\"\u003ePOWDERED METAL\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eQuantity\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"Quantity\"\u003eSOLD INDIVIDUALLY\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e","brand":"BTR - Brian Tooley Racing","offers":[{"title":"Default Title","offer_id":62806565716127,"sku":"BTR-CVH3P-6U","price":899.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0424\/7571\/6767\/files\/btr-cvh1p-6uhero_1.jpg?v=1780527537","url":"https:\/\/streetdrivenperformance.com\/products\/btr-canted-valve-ls-cylinder-head-ls3-6-bolt-porters-casting-btr-cvh3p-6u","provider":"Street Driven Performance","version":"1.0","type":"link"}