Shaft Rocker Arm Kit LS1/LS6 1.7/1.7 Ratio

The Shaft Rocker Arm Kit LS1/LS6 1.7/1.7 Ratio by JESEL is a precision upgrade designed for serious LS engine builders and high-performance mechanics. This kit is essential for achieving consistent and reliable valve actuation in aggressive LS powerplants, addressing the limitations of stock components that can lead to geometric compromises and deflection under load.

The innovative shaft rocker architecture features a continuous support shaft that stabilizes individual rocker arms, significantly reducing rocker flex and wear compared to traditional bolt-down configurations. The 1.7/1.7 mechanical advantage ratio on both intake and exhaust sides maintains factory valve timing geometry while improving lift resolution and minimizing parasitic friction losses. This design is particularly beneficial for LS1 and LS6 platforms, accommodating both stock and aggressive cam profiles without increasing pushrod wear or requiring excessive valvespring pressures.

Engine builders and racers will appreciate the precision-machined construction, which ensures tight tolerances and repeatable performance. This is critical for engines subjected to elevated boost levels, nitrous applications, or extended duty cycles, where stable valve control directly influences reliability and power output consistency. The Shaft Rocker Arm Kit is an ideal choice for high-performance street, forced induction, and racing applications.