COMP Cams Ultra Pro Magnum Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.52 Ratio - Small Block Chevy / GM V6 Coolant Hose Black Housing

Black Housing

5/8 in Tube OD

15-1/2 in Wide Seat

polished steel shaft

COMP Cams Ultra Pro Magnum Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.52 Ratio - Small Block Chevy / GM V6 Coolant Hose Black HousingThe Ultra Pro Magnum Roller Rocker Arms for Chevy V8 265 400 applications take stud mount rocker performance, stability and value to a whole new level. These rocker arms feature a 7 16" stud diameter and 1. 52 ratio. The 8650 chromemoly material and arched, web like design deliver increased strength and rigidity while still reducing the moment of inertia and optimizing the dynamic balance. A unique black oxide exterior finish helps prevent corrosion