{"product_id":"btr-ls1-canted-valve-cnc-ported-cylinder-heads-pair-btr-cvh1c-6a","title":"BTR LS1 Canted Valve 6-Bolt CNC Ported Assembled Cylinder Heads (Pair) - BTR-CVH1C-6A","description":"\u003cp\u003eBTR CNC-ported, assembled canted-valve cylinder heads for LS1 applications. Supplied as a pair with LT1-type valves and BTR .660-inch Platinum valve springs.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart number: BTR-CVH1C-6A\u003c\/li\u003e\n\u003cli\u003eCathedral intake ports: 250cc; combustion chambers: 63cc\u003c\/li\u003e\n\u003cli\u003e2.125-inch hollow-stem steel intake valves; 1.590-inch steel exhaust valves\u003c\/li\u003e\n\u003cli\u003eIntake angle: 11 degrees with 5-degree cant; exhaust: 13 degrees with 3-degree cant\u003c\/li\u003e\n\u003cli\u003eMinimum bore: 3.780 inches\u003c\/li\u003e\n\u003cli\u003eSix-bolt configuration with .750-inch deck\u003c\/li\u003e\n\u003cli\u003ePowdered-metal valve guides\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility and installation\u003c\/h3\u003e\u003cp\u003eAccepts straight LS1 pedestal rockers, LS-style valve covers and OEM-style intake\/exhaust manifolds. Requires Gen V LT long-reach spark plugs. Allows 3\/8-inch pushrods; typical lengths are 7.925–8.025 inches intake and 7.900–8.000 inches exhaust. Measure your engine before selecting pushrods.\u003c\/p\u003e\u003cp\u003eUse LS1 rocker bolts. Check accessory\/dipstick bolt length: the M10x1.5 hole is shallower than OEM. Apply suitable thread sealant where intake rocker bolts intersect the ports. Verify all engine clearances before assembly.\u003c\/p\u003e","brand":"Brian Tooley Racing","offers":[{"title":"Default Title","offer_id":42982284230736,"sku":"BTR-CVH1C-6A","price":5699.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0089\/3045\/9728\/files\/btr-cvh1c-6ahero.jpg?v=1790725945","url":"https:\/\/www.1320motorsports.com.au\/products\/btr-ls1-canted-valve-cnc-ported-cylinder-heads-pair-btr-cvh1c-6a","provider":"1320 Motorsports","version":"1.0","type":"link"}