Comp Cams Ultra Pro Magnum Rocker Arms have been completely redesigned for reduced weight and greater strength. Recent advancements in design capabilities and steel casting processes have paved the way for a “clean sheet” redesign. Everything from casting techniques to valve spring clearance was scrutinized.
The most noticeable advancement with the Comp Ultra Pro Magnum Rocker Arms centers around their nearly unbreakable investment cast 8650 chrome-moly body. The new design delivers a nearly 29% increase in strength and rigidity while reducing the moment of inertia and optimizing the dynamic balance. The resulting rocker maximizes lift and valve train control at high rpm. The increased retainer and valve spring clearances of the new design enable the use of large diameter valve springs, retainers and locks without clearance or fitment issues. The new black oxide exterior finish offers a distinctive appearance along with long term corrosion resistance. These new rockers feature a fully rebuildable design that means they very well may be the last rocker arms you ever have to purchase. Part number 1632-16 fits 289-302-351 Ford engines with a 7/16 stud and cost $348.60 per set. Contact Comp Cams at (800) 999-0853 www.compcams.com.