BBC Sportsman R/A's - 1.72 Ratio 7/16 Stud

The PRW Industries BBC Sportsman R/A's - 1.72 Ratio 7/16 Stud are specialized rocker arms designed for big-block Chevrolet engines. These components are suitable for both high-performance street applications and competitive builds, providing a significant upgrade over stock rocker arms. They are engineered to enhance valvetrain stability and reliability, making them an essential choice for mechanics and engine builders.

Featuring a 1.72 mechanical advantage ratio, these rocker arms allow for aggressive valve lift while minimizing pushrod loads. The 7/16-inch stud diameter ensures superior clamping force and reduced flex compared to smaller fasteners. Manufactured using premium materials and precision CNC machining, these rocker arms maintain consistent geometry across valve events, which is crucial for minimizing float at high RPM and ensuring reliable cam timing.

These rocker arms are particularly beneficial for builders and engine shops working on BBC platforms, compatible with a range of engine sizes from 396 to 502 cubic inches. They are ideal for those integrating modern aftermarket camshafts and cylinder heads, providing the durability and performance needed for both street and race applications.