COMP Cams Rockers CB 1.8 7/16in Ultra Pro

COMP Cams is well-known for making performance engine parts, and their Ultra Pro Magnum XD rocker arms are a prime example of their commitment to quality. If you're working on a 1970-1974 Chevrolet Corvette, especially a big block engine, these rockers are built to handle the demands of performance builds. They replace your stock rocker arms with a more robust design that's made to last.

These rockers are constructed from durable 8650 steel, which is a strong material that stands up well to wear and tear, outperforming many import options. A unique feature is the machined billet pushrod seat insert, adding exceptional durability right where it counts. The set includes 12 rockers, each with a 1.8 ratio, and they mount using a 7/16-inch stud. Precision-sorted needle bearings and hardened roller tips are used to help distribute the load evenly and reduce friction, which means less wear and a longer service life for your engine. They're also designed to work with most common spring and retainer diameters, making them adaptable to various setups. The XD design itself was developed using advanced computer-aided engineering to optimize strength and stiffness, making them a solid choice for endurance, drag, or circle track applications.

This set is fully rebuildable, meaning you can service them down the line if needed. They are designed to fit your specific Chevrolet Corvette models from 1970 through 1974, and also fit other GM vehicles like the Chevelle, Brookwood, Laguna, and Malibu from similar years.