Canted Valve Assembled Cylinder Head, GM LS1 6-Bolt, CNC-Ported

Name: Canted Valve Assembled Cylinder Head, GM LS1 6-Bolt, CNC-Ported
Brand: BRIAN TOOLEY RACING BTR
SKU: 559-CVH1C-6A
Price: 1599.99 USD
Availability: InStock

^$1,599⁹⁹

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Canted Valve Assembled Cylinder Head

GM LS1

6-Bolt

250cc Ports

63cc Chamber

CNC-Ported

Sold Individually

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 the correct height with our .660" lift Platinum spring kit, ready for your stock type LS1 rocker arm setup, then bolt-on and go!

Brian Tooley Racing BTR CVH1C-6A Features:

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)
LS1 style port finished to 250cc - Chamber finished to 63cc
Intake flow - Over 360 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 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

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 clearance 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 clearance may be needed for some applications. Test-fit all manifolds and brackets before installation.

Part TypeCylinder Head

BrandBRIAN TOOLEY RACING BTR

Part CategoryPerformance Parts

Spark Plug ReachLong Reach

AssembledYes

Deck Thickness0.750 in.

Exhaust Valve MaterialSteel

Fuel TypeGasoline

Rocker Arms IncludedNo

Valve Covers IncludedNo

Valve Spring Maximum Lift0.660 in.

Number Of Valves8