COMP Cams 1622-1 - Ultra Pro Mag Rocker, Chrysler SB 1.5

COMP Cams Ultra Pro Magnum Shaft Mount Rocker Arm, 1.5 Ratio for Small Block Chrysler, Single Piece The Shaft Mount Ultra Pro Magnum Roller Rocker Arms for Chrysler V8 273-360 applications 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 shaft mount rocker arms feature a 1.5 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 trunnions, 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. For Small Block Chrysler applications; Contain all proprietary bushing inserts; Unique oiling system lubricates all critical parts for longevity