COMP Cams Rocker Arms CB 1.7 7/16 Ultra

Starting with investment cast 8650 chromemoly steel, these Ultra Pro Magnum roller rocker arms are built for serious performance. The arched, web-like design isn't just for looks; it adds significant strength and rigidity to the rocker body while also reducing rotational mass. This helps optimize the dynamic balance of your valvetrain, especially important when you're pushing your engine hard.

COMP Cams has also paid close attention to the details that matter for durability and compatibility. The unique black oxide exterior finish helps ward off corrosion and adds to the overall toughness. Inside, you'll find oversized trunnions, precision-sorted needle bearings, and hardened roller tips, all working together to ensure smooth operation and long life under high spring pressures – up to 850 lbs of open spring pressure, to be exact. The retainer and valve spring clearances are optimized, meaning you can use most common spring diameters, retainers, and +.050" locks without running into clearance issues.

These rocker arms are designed for a range of Chevrolet V8 engines, including popular models like the 396, 402, 427, and 454 cubic inch displacements, using a 7/16" stud. They are a well-built choice for anyone rebuilding or upgrading their engine's top end, offering a solid 1.7 ratio for improved valve lift. COMP Cams backs these rocker bodies with a lifetime warranty against breakage, giving you confidence in their strength and reliability.