COMP Cams Rocker Arms FS/FW 1.6 7/16 Ultra - 1632-8

Ultra Pro Magnum Rocker Arm Set of 8 w/ 1.6 Ratio for Ford 289-351W 7/16" Stud

Ultra Pro Magnum Roller Rocker Arms for Ford

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 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. <ul> <li>Ford V8 289-302-351W - 7/16" Stud - 1.6 Ratio</li> <li>Investment cast 8650 chromemoly body and arched, web-like design deliver increased strength and rigidity while still reducing the moment of inertia. Unique black oxide exterior finish helps prevent corrosion and increases durability.</li> <li>Optimized retainer and valve spring clearances allow for use of most diameter springs, retainers and +.050" locks without clearance or fitment issues.</li> <li>Feature Oversized trunnions, precision-sorted needle bearings and hardened Roller tips.</li> <li>Lifetime Warranty - So strong that we guarantee the Rocker bodies against breakage for life. For use with up to 850 lbs of open spring pressure.</li> </ul>