V2 Rocker Arm Trunnion Upgrade Kit

The V2 Rocker Arm Trunnion Upgrade Kit from Brian Tooley Racing is engineered for serious performance builders and mechanics seeking to maximize valve train durability and reliability in high-rpm applications. Rocker arm trunnions are critical pivot points that support lateral loads during valve actuation, and factory designs often become the weak link under aggressive cam profiles, boost, or nitrous systems. This upgrade kit directly addresses that bottleneck by replacing stock trunnions with precision-manufactured components designed to handle sustained high-load conditions without deflection or wear.

Brian Tooley Racing's V2 design improves upon previous iterations with enhanced geometry and material specifications that reduce stress concentration at the fulcrum point of the rocker arm assembly. The upgraded trunnion maintains tighter tolerances and more consistent bore dimensions than OEM parts, ensuring stable valve timing geometry across the full rev range and reducing harmonic stress that compromises long-term component life. Installation is straightforward for experienced engine builders; the kit integrates directly into existing rocker arm platforms without requiring additional machine work or modification to cylinder heads.

This upgrade is most valuable for LS-platform engines running modified cam profiles, forced induction systems, or extended-rpm street and race builds where valve train stress is elevated above stock parameters. Mechanics servicing customer builds or competitive vehicles benefit from the added margin of safety and extended service intervals that quality trunnions provide. The kit's compact form factor and modest weight make it an essential insurance policy for any serious performance engine assembly.