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

The T AND D MACHINE SBC Sport Comp Shaft R/A Kit with 1.60/1.60 ratio delivers a complete rocker arm assembly solution for small block Chevy engine builds requiring shaft-mounted installation. This full roller kit combines mechanical advantage with durability, making it a core component for builders pursuing reliable high-performance engine calibration without extensive custom fabrication.

The 1.60/1.60 ratio represents a symmetric rocker arm design that multiplies valve lift equally across both intake and exhaust circuits. Full roller bearings on the rocker contact surfaces reduce friction and minimize wear under sustained RPM and load cycles—critical for engine longevity during street or track operation. Aluminum construction keeps the assembly lightweight without sacrificing the rigidity required for precise valve timing. The shaft-mount design anchors the rocker arms to a central shaft running the length of the cylinder head, providing stable geometry and allowing the kit to integrate seamlessly into standard small block Chevy architecture.

This kit suits engine builders upgrading from stock rocker arms to improve power delivery across the RPM band. The symmetric ratio is particularly effective in applications where intake and exhaust flow characteristics are balanced, such as naturally aspirated small block platforms or entry-level forced induction builds. Engine builders, restoration shops, and performance enthusiasts use SportComp rocker kits to achieve measurable gains in valve response without requiring full cylinder head replacement or complex adjustment procedures.

TacticalSurplusUSA stocks this complete T AND D MACHINE rocker kit to support serious builders with verified, ready-to-install engine components. The natural aluminum finish resists light corrosion and allows straightforward inspection of bearing wear during routine maintenance.