Product Information
These Magnum Roller Rocker Arms for Small Block Chevy 265-400 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.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1983-1989 | Chevrolet | S10 Blazer | Base |
| 1987-1989 | Chevrolet | S10 Blazer | High Country |
| 1983-1989 | Chevrolet | S10 Blazer | Sport |
| 1983-1988 | Chevrolet | S10 Blazer | Tahoe |
