LS3 Shaft Rocker Kit - Unassembled

The LS3 Shaft Rocker Kit – Unassembled from Brian Tooley Racing is engineered for serious LS engine builders and enthusiasts seeking maximum valve train control and durability. This unassembled kit allows experienced mechanics and custom builders to inspect, prepare, and install each component to their exact specifications, ensuring proper fitment and longevity in high-performance applications. Whether you're building a street beast, track-focused platform, or naturally aspirated powerhouse, a quality shaft rocker system is fundamental to reliable valve operation and peak engine performance.

Brian Tooley Racing's LS3 shaft rocker design replaces the factory stamped-steel rocker arms with precision-engineered components that provide superior mechanical advantage, reduced deflection, and enhanced valve lift consistency across the entire RPM range. Shaft rockers offer tighter tolerances and lower friction compared to stud-mounted alternatives, translating to improved throttle response and valve actuation reliability under aggressive cam profiles and high lift scenarios. The unassembled format gives builders the flexibility to select compatible pushrods, rocker arm studs, and supporting hardware tailored to their specific engine configuration—critical when tuning LS variants with different bore centers, oiling strategies, or cylinder head designs.

LS engine rebuilds and race builds benefit most from this kit, particularly when pairing aggressive hydraulic or solid-roller camshafts with premium cylinder heads and high-flow induction systems. Builders working on LS1, LS2, LS3, and LS7 platforms should verify rocker arm geometry compatibility with their specific heads and intake manifold clearance before ordering. Installation requires mechanical competency, torque specifications from your engine manual, and proper valve train pre-load setup; professional machine shops and experienced engine builders should handle assembly to ensure correct rocker geometry, pushrod length, and lifter preload for optimized performance and component longevity.