SBC Sport Comp Shaft R/A Kit 1.60/1.60 Ratio

The T AND D MACHINE SBC Sport Comp Shaft R/A Kit 1.60:1 is a precision rocker arm assembly designed specifically for small-block Chevrolet engines. It is ideal for engine builders and enthusiasts looking for aggressive valve actuation and high-RPM reliability in their naturally aspirated or boosted SBC platforms.

This kit features a 1.60:1 ratio that optimally balances valve lift multiplication and spring load control, making it suitable for sport-level builds where consistent valve timing and responsiveness are crucial. Engineered from hardened steel, this rocker arm kit is designed to withstand high-lift cam profiles and elevated RPM operation without deflection or wear.

Builders working on stroker builds, LS-swap alternatives, or port-and-polish SBC projects targeting the 5,500–7,000 RPM range will benefit from this kit. It simplifies installation by providing matched performance characteristics for both intake and exhaust sides, ensuring improved combustion efficiency and exhaust scavenging.