Trunnion Upgrade Kit GM LS7/GEN-V LT1 Rocker Arm

The Trunnion Upgrade Kit GM LS7/GEN-V LT1 Rocker Arm by COMP CAMS is designed for serious LS and LT engine builders who require precision in valve train geometry and durability in extreme conditions. This upgrade kit addresses a common weak point in stock rocker arm assemblies, specifically the trunnion pivot point, which is crucial for supporting lateral loads during high-RPM operation and aggressive valve acceleration.

Engineered with hardened steel construction and tighter tolerances than OEM rocker arms, this kit provides a more rigid pivot support that minimizes deflection under peak valve spring loads. The trunnion upgrade significantly reduces rocker arm geometry errors that can occur as boost pressure increases or valve lift exceeds factory specifications, ensuring consistent valve timing across the power band.

This upgrade is particularly beneficial for those running elevated spring pressures, extended valve lift cams, or forced induction on LS7 and LT1 platforms. It is essential for street machines and race engines alike, and while installation is designed to integrate with existing LS7 and Gen-V LT1 cylinder head casting designs, users should verify compatibility with their specific setups.