COMP Cams 1431-1 Magnum Roller Rocker Arm with 1.6 Ratio and 3/8" Stud Diameter for Ford Small Block Rail Type Engine

Brand	Comp Cams
Model	1431-1

For Small Block ford applications, 3/8 inch stud, 1.6 ratio

Roller tip reduces friction while stiff design and superior ratio accuracy yields more effective valve lift

15 to 30 horsepower increase over stock rocker arms

Use in any applications with less than 350 lbs. open spring pressure

Made from 8620 chromemoly steel that will not flex

These Magnum Roller Rocker Arms for Ford V8 289-351W (Rail Type) 1968-89 applications are the ultimate street rocker. With a 3/8 inch stud diameter and 1.7 ratio, they are designed for serious performance enthusiasts. All Magnum Roller Rocker Arms are constructed from 8620 chromemoly steel, which is a superior material that will not flex and assures maximum lift. Their roller tip reduces friction, while stiff design and superior ratio accuracy yield more effective valve lift. With a 15 to 30 horsepower increase over other rocker arms, Magnum Roller Rockers are perfect for performance applications with less than 350 lbs. open spring pressure. Don't accept inferior products or cheap knock-offs, look for the COMP Cams logo stamped into the underside of every Magnum Rocker.