The new Ultra Pro Magnum™ Roller Rocker Arms not only live up to the lofty standards of the original Pro Magnums™, but they also take Stud mount rocker performance, stability and value to a whole new level. The modern arched, web like design delivers increased strength and rigidity while still reducing the moment of inertia and optimizing the dynamic balance.
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 Lifetime Warranty