COMP Cams Rockers CS 1.65 7/16in Ultra Pro

The COMP Cams Ultra Pro Magnum XD Roller Rocker Arms (1806-8) are engineered from durable 8650 Chromemoly Steel, offering 29 percent greater strength than the Pro Magnum series. This set of 8 rocker arms is designed for Chevrolet V8 265-400 Small Block engines with a 1.65 ratio and 7/16 inch studs. They feature a redesigned steel stud mount, reduced weight, and increased high RPM stability, along with a black oxide exterior finish and enhanced retainer and valve spring clearances. These fully rebuildable rocker arms include precision-sorted needle bearings and hardened roller tips, and are backed by a lifetime warranty, suitable for endurance, circle track, and drag race applications up to 1000 lbs. open spring pressure.