Comp Cams SB Ford & Oldsmobile V8 Mag Rocker Arm 3/8 Stud/1.6 Ratio

These Magnum Roller Rocker Arms for Ford V8 289-351W (Non Rail Type), 260-455 Oldsmobile and 290-401 AMC applications are the ultimate street rocker. With a 3/8" stud diameter and 1.6 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.

Perfect for street performance, our 8620 chromemoly steel Magnum roller tip rockers can handle up to 350 lbs. of spring pressure. This 1442 rocker features a 1.6 ratio for 3/8" stud AMC 290-401, non-rail Ford 289-351W and Olds 260-455.