COMP Magnum Roller Rocker Arms 3/8" Stud Dia, 1.6 Ratio (16) (CO1431-16)

COMP Cams Magnum Roller Rockers are the ultimate street rocker because they were designed with the serious performance enthusiast in mind and will help your engine make more power and last longer.

• Ultimate street rocker designed for serious performance enthusiasts
• Constructed from 8620 chromemoly steel, a superior material that will not flex and assures maximum lift
• Roller tip reduces friction while stiff design and superior ratio accuracy yields more effective valve lift
• 15 to 30 horsepower increase over other rocker arms
• Use in any applications with less than 350 lbs. open spring pressure