SBC Shaft Rocker Arm Kit 1.60/1.60 Ratio

The SBC Shaft Rocker Arm Kit 1.60/1.60 Ratio from T AND D MACHINE is designed for small-block Chevy engine builders who require precise valvetrain control and dependable high-RPM performance. This kit is ideal for various applications, including street performance engines, weekend bracket racers, and dedicated track-focused builds, providing the necessary mechanical advantage to enhance valve lift and duration throughout the RPM range.

The 1.60/1.60 ratio indicates equal mechanical advantage for both intake and exhaust valves, effectively amplifying cam lift during the valve event. Shaft-style rocker arms are engineered for superior stability and reduced deflection compared to traditional pedestal designs, particularly under high valve spring pressures and during sustained high-RPM operation. T AND D MACHINE ensures these components are manufactured to tight tolerances, promoting consistent geometry that directly influences valve timing and lift characteristics.

This rocker arm kit is suitable for builders working with small-block Chevy engines ranging from 265 to 400 cubic inches, making it a versatile choice for those looking to maximize performance. The precision-ground shaft and hardened rocker arm bodies are designed to resist wear and maintain clearances over thousands of combustion cycles, which is essential for engines utilizing aggressive cam profiles or enduring extended track sessions.