Shaft Rocker Arm Kit SBC 1.6/1.6 Ratio

The JESEL Shaft Rocker Arm Kit SBC 1.6/1.6 Ratio is a precision-engineered component set designed for small block Chevy performance builds requiring full roller rocker arm technology. This shaft-mounted rocker arm kit delivers consistent valve actuation across the full RPM range, providing the reliability and repeatability demanded by sportsman-level racers and high-performance engine builders. The 1.6:1 rocker ratio is engineered to optimize valve lift and timing characteristics for naturally aspirated small block platforms.

This complete set of 16 aluminum rocker arms features full roller design, eliminating the friction and wear inherent to solid-contact arm designs. The shaft-mount architecture distributes loads evenly across the valve train, reducing deflection and improving valvetrain stability under high-load conditions. The natural aluminum finish resists corrosion while remaining lightweight. These rocker arms are specifically engineered for Dart Pro 1 cylinder heads, ensuring proper geometry, bore spacing, and valve stem angle compatibility. The 1.6:1 ratio provides a balanced approach to valve lift multiplication without sacrificing pushrod angle or introducing excessive valve train side loads.

Builders selecting this rocker arm kit typically operate in competitive or high-output street applications where consistent, repeatable performance is non-negotiable. The full-roller design minimizes parasitic drag losses while the shaft-mount system ensures precise alignment across all 16 arms. Installation on Dart Pro 1 heads is straightforward, with the rocker geometry optimized for standard small block Chevy cam designs. These rocker arms complement aggressive cam profiles while maintaining adequate valve spring pressures and pushrod geometry.