COMP Cams Rockers CB 1.73 7/16in Ultra Pro

If you're rebuilding the top end of your Chevrolet Big Block engine, especially for endurance, drag, or circle track racing, a strong set of rocker arms is crucial. These COMP Cams Ultra Pro Magnum XD rocker arms are built to handle the demands of high-performance applications, offering a 1.73 ratio and designed for 7/16" studs.

These rockers are machined from durable 8650 steel, a material known for its strength and longevity, and feature a unique machined billet pushrod seat insert for exceptional durability. They are designed to work with most spring and retainer diameters and can handle up to 1,000 lbs of spring pressure. The precision-sorted needle bearings and hardened roller tips are key to distributing load effectively and reducing wear, which translates to a longer service life for your engine's valvetrain. The XD design itself has undergone advanced FEA and CAD analysis to optimize strength, stiffness, and inertia for demanding use.

This set is a popular choice for a wide range of Chevrolet vehicles, including models like the 1965-1973 Chevelle, 1967-1972 Camaro, and 1965-1974 Corvette, among many others. They are fully rebuildable, giving you the option to service them down the line. Ensure you have 7/16" studs for proper installation.