{"product_id":"btr-cvh-ls3-58cc-cnc-ported-6-bolt-cylinder-head-assembled-each","title":"BTR CVH LS3 58cc CNC Ported 6-Bolt Cylinder Head - Assembled - Each","description":"\u003cp\u003eBTR canted-valve LS3-style cylinder head with a 58cc combustion chamber, 260cc CNC-ported intake runner and 6-bolt configuration. Sold individually.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAssembled with LT1-type 2.125-inch intake and 1.590-inch exhaust valves and BTR .660-inch Platinum valve springs.\u003c\/li\u003e\n\u003cli\u003eLS3-style ports; minimum 3.820-inch bore.\u003c\/li\u003e\n\u003cli\u003eUses straight LS1-style pedestal rocker arms and bolts, LS-style valve covers and Gen V LT-style long-reach spark plugs.\u003c\/li\u003e\n\u003cli\u003e11-degree intake \/ 13-degree exhaust valve angles with 5-degree \/ 3-degree cant; .750-inch deck.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e The 58cc chamber provides approximately .035 inch less piston-to-valve clearance than the standard 64cc CVH3. Verify all engine clearances, pushrod length, bracket and manifold fitment before assembly. C5\/C6 alternator brackets require minor clearancing. Coolant end ports are -12 ORB.\u003c\/p\u003e\u003cp\u003eManufacturer currently lists this head on backorder. Contact SMGspeed for current availability. Manufacturer photos may differ from the actual product.\u003c\/p\u003e","brand":"Brian Tooley Racing","offers":[{"title":"Default Title","offer_id":67806090756415,"sku":"BTR-CVH3C-6A","price":1599.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0760\/2041\/6831\/files\/btr-cvh3c-6a.jpg?v=1792411123","url":"https:\/\/smgspeed.com\/products\/btr-cvh-ls3-58cc-cnc-ported-6-bolt-cylinder-head-assembled-each","provider":"SMGspeed","version":"1.0","type":"link"}