COMP Cams Magnum Chromoly Roller Tip Rocker Arm - 3/8 in Stud Mount - 1.52 Ratio - GM V6 (Set of 12) 1412-12 COM31-442-8 These harmful elements cause abrasive

These harmful elements cause abrasive wear to the polished shaft

2010-2013 Chevrolet Express 4500

Centerforce II

header bolts and collector reducers

COMP Cams Magnum Chromoly Roller Tip Rocker Arm - 3/8 in Stud Mount - 1.52 Ratio - GM V6 (Set of 12) 1412-12 COM31-442-8 These harmful elements cause abrasiveComp Cams Magnum Chromoly Roller Tip Rocker Arm 3 8 in Stud Mount 1. 52 Ratio GM V6 (Set of 12) These Magnum Roller Rocker Arms for Small Block Chevy 265 400 applications are the ultimate street rocker. With a 3 8" stud diameter and 1. 52 ratio, they are designed for serious performance enthusiasts. All Magnum Roller Rocker Arms are constructed from 8620 chromemoly steel, which is a superior material that will not flex and assures maximum lift. Their