Canted Valve LS Cylinder Heads LS3 6 Bolt CNC Ported Assembled (Pair)

BTR CANTED VALVE LS CYLINDER HEAD - LS3 6 BOLT - CNC PORTED - ASSEMBLED - BTR-CVH3C-6A *****SOLD AS PAIRS***** BTR CANTED VALVE LS CYLINDER HEAD - LS3 6 BOLT - CNC PORTED - ASSEMBLED - BTR-CVH3C-6A CNC LS3 style port finished to 260cc - Chamber finished to 64cc 2.125Ó intake and 1.590Ó exhaust valves assembled with BTR .660" Platinum springs This cylinder head is sold individually and ships fully machined and CNC ported with finished valve guides and seats installed. LT1 type valves are installed to correct height with our .660" lift Platinum spring kit, ready for your stock type LS1 rocker arm setup, then bolt-on and go! BTR exclusive canted-valve design allows for maximum valve unshrouding and sizing - Cathedral fits a 3.780" bore, LS3 style fits a 3.820" bore! 11¡ intake (5¡ canted) and 13¡ exhaust (3¡ canted) Cast in Iowa - Designed, tested, machined & sold in Kentucky! LS3 style port finished to 260cc - Chamber finished to 64cc Intake flow - Over 370 CFM at .650Ó when used with BTRÕs port program! Uses OEM LT1 2.125Ó steel hollow-stem intake and 1.590Ó steel exhaust valves LT4 Ti intake and L8T Inconelª exhaust valves can also be used with lash caps Superior OEM-type powdered metal guides Utilizes OEM-style straight LS1 pedestal rockers, OEM-style intake & exhaust manifolds, and LS-style valve covers Uses Gen V LT style long reach spark plugs and valve spring kits up to 1.350Ó O.D. spring Clears 3/8Ó pushrods Ð Typical length intake 7.925-8.025Ó & exhaust 7.900-8.000Ó Extra-thick .750Ó boost-friendly deck in popular Ò6-boltÓ configuration BTR / Wiseco Canted-Valve specific pistons available for most popular LS applications Multiple Patents Pending! INSTALLATION NOTES Ð 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.