This Ultra Pro Magnum™ Roller Rocker Arm for Chevy V8 265-400 and V6 200-262 applications not only lives up to the lofty standards of the original Pro Magnums™, but it also takes Stud mount rocker performance, stability and value to a whole new level. This Rocker Arm features a 3/8 Inch 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 and increases durability. Featuring oversized trunions, precision sorted needle bearings and hardened roller tips for the ultimate in performance and dependability. Optimized retainer and Valve Spring clearances allow for use of most Diameter springs, retainers and 0.05 Inch locks without clearance or fitment issues.
Investment Cast 8650 Chromemoly Body And Arched, Web Like Design Deliver Increased Strength And Rigidity While Reducing Moment Of Inertia
Unique Black Oxide Exterior Finish Helps Prevent Corrosion, Thus Increasing Durability
Optimized Retainer And Valve Spring Clearances Allow Use Of Most Diameter Springs, Retainers And +0.05 Inch Locks Without Clearance Or Fitment Issues
Feature Oversized Trunions, Precision Sorted Needle Bearings And Hardened Roller Tips
Limited 1 Year Warranty