SBC Sportsman R/A's - 1.52 Ratio 3/8 Stud

The SBC Sportsman R/A's - 1.52 Ratio 3/8 Stud rocker arms are engineered for small-block Chevy engines where reliable valve actuation and consistent lift ratios are non-negotiable. This 16-piece set delivers the precision geometry needed by weekend warriors, restoration enthusiasts, and street engine builders who demand repeatability without premium pricing. Rocker arms are the mechanical bridge between your camshaft and intake/exhaust valves—getting them right directly impacts combustion efficiency, valve timing accuracy, and overall engine responsiveness.

Built by PRW Industries, these sportsman-grade rockers feature a 1.52:1 ratio that multiplies cam lift by approximately 52%, translating to greater valve opening and faster valve events. The roller tip design minimizes friction and wear on the pushrod interface, extending component life and reducing parasitic losses compared to stock ball-socket designs. Three-eighths inch stud mounts provide rigid, direct attachment to the cylinder head, ensuring zero deflection during high-rpm operation. Steel construction with natural finish offers proven durability across thousands of engine hours, while the standardized stud pattern ensures drop-in compatibility with most small-block Chevy platforms.

These rocker arms suit engine builders upgrading from original equipment, rebuilders restoring classic muscle cars, or enthusiasts seeking better valve control on carbureted and fuel-injected small-block Chevy engines. Installation requires pushrods, lifters, and a properly indexed camshaft; verify your cylinder head accepts 3/8-inch studs before ordering. The complete 16-piece set includes both intake and exhaust rockers, delivering everything required for a full rocker arm conversion on your small-block platform.