COMP Cams 163216 Ultra Pro Magnum Roller 1.6 Ratio, 0.44 in. Stud Diameter Rocker Arm for Small Block Ford

The ultra pro magnum roller rocker arms for ford v8 289-302-351w 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 rocker arms feature a 0.44 in. Stud diameter and 1.6 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.

• Investment cast 8650 chromemoly body and arched, web-like design deliver increased strength and rigidity while reducing moment of inertia
• Unique black oxide exterior finish helps prevent corrosion, thus increasing durability
• Optimized retainer and valve spring clearances allow use of most diameter springs, retainers and +.050 in. Locks without clearance or fitment issues
• Feature oversized trunions, precision sorted needle bearings and hardened roller tips.