COMP Cams Magnum Roller Rocker CS 1.52

173 Applications is the ultimate street Rocker. With a 10mm Stud diameter and 1.52 ratio, it is 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 1413 rocker features a 1.52 ratio for 10mm stud Chevrolet 173 V6.