BTR Brian Tooley Racing LS3 Shaft Rocker Kit V2 | Pre-Assembled with BTR Rocker Bodies | Fits 6.0L & 6.2L LS3 LS99 LSA LS9 L92 L76 L77 Rectangle-Port Heads

Engineered for high-RPM builds and turbocharged applications, the Brian Tooley Racing (BTR) LS3 Shaft Rocker Kit V2 dramatically stiffens LS valvetrains with its billet steel shaft system and pre-assembled BTR rocker bodies. It’s built around a rugged steel stand with four shafts per head, each shaft made from genuine 52100 bearing steel, housing full trunnion bearings. The V2 design features shim-loaded shafts for simplified assembly and enhanced strength over snap-ring systems. Each rocker body secures with five fasteners to eliminate flex and reduce deflection—46% stronger than stock in FEA—and supports higher cam lift with an extended tip. Ideal for rectangle-port LS3, L99, LSA, LS9, L92, L76, and L77 engines (2007–2015). Fits OEM castings #821, #823, #5364. Bolt-in, swap your stock rockers, and unleash valve control like never before.

• Complete Kit Shaft Rocker System – Pre-Assembled & Ready to Install – This Kit includes Brian Tooley Racing rocker bodies, rocker shafts, and pedestal mounts, all pre-assembled for a streamlined installation process and immediate performance benefits.
• Designed for LS Rectangle Port Cylinder Heads – Engineered specifically for LS3, L99, LSA, LS9, L92, L96, L76, and L77 cylinder heads, offering precision fitment and enhanced valvetrain control in high-RPM environments.
• Rigid Shaft Mounting Improves Stability & Valve Timing Accuracy – The BTR shaft system minimizes rocker arm flex and deflection, maintaining consistent valve timing and improved upper-RPM stability, especially under aggressive cam profiles or forced induction.
• Pre-Assembled for Professional-Level Performance with Minimal Setup – Kit comes fully assembled, making it ideal for engine builders, racers, and enthusiasts looking for a drop-in solution without sacrificing strength or precision.
• Compatible with Factory and Aftermarket LS Camshaft Setups – This rocker kit is optimized for aggressive camshafts, offering the strength and reliability needed for high-lift, high-RPM street and race applications.