Comp Cams Ultra Pro Magnum Full Roller Rocker Arm - 3/8 in Stud Mount - 1.52 Ratio - Chromoly - Small Block Chevy - Set of 16 1617-16

The Ultra Pro Magnum Roller Rocker Arms for 1988 and later Chevy V8 applications (with self aligning rockers) 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. These rocker arms feature a 3/8" 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 +.050" locks without clearance or fitment issues.

These Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs. of spring pressure. Featuring a 1.52 ratio, these rockers fit '88+ Chevrolet Small Blocks with a 3/8" diameter stud.