COMP Cams Rocker Arm CB 1.7 7/16 Ultra

If you're working on a Chevrolet big block V8 like the 396, 402, 427, or 454, these COMP Cams Ultra Pro Magnum rocker arms are a solid choice for improving your engine's valvetrain. They feature a 1.7 ratio, which means the valve will open further than with a stock 1.5 ratio rocker, helping your engine breathe a little better, especially at higher RPMs. This particular set is designed for engines using a 7/16 inch stud.

These aren't just any rocker arms; they're built from 8650 chromemoly steel with a black oxide finish to help ward off corrosion and add durability. The design includes oversized trunnions, precision needle bearings, and hardened roller tips, all aimed at providing smooth operation and long life, even under demanding conditions. They're also designed with extra clearance around the retainers and valve springs, so you can use a variety of common spring diameters and locks without running into fitment issues. COMP Cams backs these with a lifetime warranty against breakage, which speaks to how well-built they are.

These rocker arms fit a wide range of Chevrolet vehicles from the 1960s and 70s, including popular models like the Impala, Chevelle, and Camaro, as well as C10 pickups. Just be sure to confirm your specific engine and stud size before ordering.