BTR CANTED VALVE LS CYLINDER HEAD - LS3 6 BOLT - CNC PORTED - ASSEMBLED - EACH - BTR-CVH3C-6A

BTR CANTED VALVE LS CYLINDER HEAD - LS3 6 BOLT - CNC PORTED - ASSEMBLED - EACH - BTR-CVH3C-6A CNC LS3 style port finished to 260cc - Chamber finished to 64cc 2.125” intake and 1.590” exhaust valves assembled with BTR .660" Platinum springs.

BTR CANTED VALVE LS CYLINDER HEAD - LS3 6 BOLT - CNC PORTED - ASSEMBLED - EACH - BTR-CVH3C-6A

What 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 & cylinder head flow bench experience, you end up with serious game-changing performance!

There’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 & 4 LS1 pedestal type rockers & bolts, valve covers & 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.

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 - Note these will have similar PTV clearance to a stock LS3 head.
• Intake flow - Over 370 CFM at .650” when used with BTR’s port program!
• Uses OEM LT1 2.125” steel hollow-stem intake and 1.590” steel exhaust valves
• LT4 Ti intake and L8T Inconel™ 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 (See instructions download for recommended part numbers) and valve spring kits up to 1.350” O.D. spring
• Clears 3/8” pushrods – Typical length intake 7.925-8.025” & exhaust 7.900-8.000”
• Extra-thick .750” boost-friendly deck in popular “6-bolt” configuration
• BTR / Wiseco Canted-Valve specific pistons available for most popular LS applications
• Multiple Patents Pending!

INSTALLATION NOTES – 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. C5/C6 Corvette alternator brackets WILL require minor clearancing to bolt flush to the engine. Due to the outer dimensions of most aftermarket cylinder head castings being slightly different than OEM, some bracket or manifold clearancing may be needed for some applications. Test fit all manifolds and brackets before installation. Coolant port holes on ends of BTR CV cylinder heads are -12 ORB and BTR port plugs should be torqued to 8-10 Ft/Lbs. Do not exceed 14 Ft/Lbs when attaching aftermarket fittings and always lubricate o-rings prior to installation to avoid damage.