Pro Shaft Rocker Kit LS3 1.80/1.80 AFR Mongoose

The Pro Shaft Rocker Kit LS3 1.80/1.80 AFR Mongoose by JESEL is a precision rocker arm assembly designed for serious LS3 engine builders and performance enthusiasts who demand repeatable, race-proven reliability. This kit is ideal for high-revving applications in street, strip, and circuit competition where valve train stability is crucial for maximizing horsepower and ensuring engine longevity.

Built for shootout-winning builds, the Pro Shaft Rocker Kit integrates JESEL's signature engineering to eliminate flex and maximize valve control under extreme operating conditions. The 1.80/1.80 rocker arm ratio configuration delivers a balanced mechanical advantage for both intake and exhaust valve events, optimizing lift and duration characteristics across the RPM band. JESEL's Pro Shaft design employs precision-ground, hardened steel construction with carefully engineered bearing surfaces to reduce wear and friction while maintaining exact valve geometry.

Racers, engine builders, and platform engineers running LS3-based power plants with AFR Mongoose cylinder heads will recognize this kit as a non-negotiable foundation component for high-performance builds. Its design ensures perfect compatibility with those high-flow heads and their valve train envelope, making it an essential choice for maximizing engine performance.