COMP Cams Rocker Arm CB 1.7 1/2 Ultra Pro - cca1625-1

The Ultra Pro Magnum Roller Rocker Arms not only live up to the lofty standards of the original Pro Magnum Rockers, 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, weblike design deliver increased strength and rigidity while reducing moment of inertia * Withstand valve spring pressures up to 850 lbs. * Unique black oxide exterior finish helps prevent corrosion, thus increasing durability * Increased retainer and valve spring clearances allow use of large diameter springs, retainers and +.050" locks without clearance or fitment issues * Feature oversized trunnions, precision-sorted needle bearings and hardened roller tips PartNumber : cca1625-1 Description : Ultra Pro Magnum Rocker Arm; Single Piece Title : 1625-1 Rocker Arm, CB 1.7 1/2 Ultra Pro Mag California Proposition 65 : WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov Engine Family : Chevrolet 396-454 c.i. 8 Cylinder (1967-1996) Maximum Valve Spring Open Pressure : 850 Rocker Arm Material : 8650 Chromemoly Steel Rocker Arm Ratio : 1.7 Rocker Arm Series : Ultra Pro Magnum Rocker Stud Diameter : 1/2 Ratio : 1.7 Stud Diameter : 1/2" 1979-1986 GMC C2500 Base V8.-cc Engine Components::Rocker Arms 1979-1986 GMC C2500 High Sierra V8.-cc Engine Components::Rocker Arms 1979-1986 GMC C2500 Sierra Classic V8.-cc Engine Components::Rocker Arms 1979-1982 GMC C2500 Sierra Grande V8.-cc Engine Components::Rocker Arms