COMP Cams Rocker Arms CS 1.6 3/8 Ultra P

If you're rebuilding the top end of your Chevrolet Small Block V8, especially a later model from '88 and up, getting the valvetrain right is key. These COMP Cams Ultra Pro Magnum rocker arms are built to handle the demands of a performance engine, offering improved stability and strength over stock components. They feature a 1.6 ratio, which means for every amount the camshaft lobe moves, the valve opens slightly more, potentially improving airflow and engine performance.

These rockers are constructed from investment cast 8650 chromemoly steel, a strong material that's also designed to reduce rotational mass. The unique arched, web-like design adds rigidity without adding significant weight, and the black oxide finish helps ward off corrosion. Inside, you'll find oversized trunnions, precision-sorted needle bearings, and hardened roller tips, all working together for smooth operation and long-term dependability. They're designed with ample clearance for most common valve springs, retainers, and locks, even those that are +.050" taller than stock, simplifying installation and compatibility.

This set is designed for engines using a 3/8" stud and self-aligning rockers, fitting a wide range of Chevrolet and GMC vehicles from the late 80s through the mid-90s, including popular models like the Chevrolet C1500 and Caprice. They are rated to handle up to 850 lbs of open spring pressure, making them a solid choice for many performance builds. COMP Cams backs these with a lifetime warranty against breakage, showing their confidence in the build quality.