This Magnum Roller Rocker Arm for Chevy V8 265-400 and V6 200-262 Applications is the ultimate street Rocker. With a 3/8" Stud diameter and 1.52 ratio, it is designed for Serious performance...

173 Applications is the ultimate street Rocker. With a 10mm Stud diameter and 1.6 ratio, it is designed for Serious performance enthusiasts. All Magnum Roller Rocker Arms are constructed from 8620...

This Magnum Roller Rocker Arm for Ford V8 289-351W (Rail Type) 1968-89 Applications is the ultimate street Rocker. With a 3/8" Stud diameter and 1.7 ratio, it is designed for Serious performance...

This Magnum Roller Rocker Arm for Ford V8 289-351W (Rail Type) 1968-89 Applications is the ultimate street Rocker. With a 3/8" Stud diameter and 1.6 ratio, it is designed for Serious performance...

and Oldsmobile V8 260-455 Applications is the ultimate street Rocker. With a 3/8" Stud diameter and 1.6 ratio, it is designed for Serious performance enthusiasts. All Magnum Roller Rocker Arms are...

This Magnum Roller Rocker Arm for Pontiac V8 265-455 Applications is the ultimate street Rocker. With a 7/16" Stud diameter and 1.65 ratio, it is designed for Serious performance enthusiasts. All...

These Magnum Roller Rocker Arms for Pontiac V8 265-455 Applications are the ultimate street Rocker. With a 7/16" Stud diameter and 1.52 ratio, they are designed for Serious performance enthusiasts...

This Magnum Roller Rocker Arm for Pontiac V8 265-455 Applications is the ultimate street Rocker. With a 7/16" Stud diameter and 1.52 ratio, it is designed for Serious performance enthusiasts. All...

and Ford V8 429-460 Applications are the ultimate street Rocker. With a 7/16" Stud diameter and 1.72 ratio, they are designed for Serious performance enthusiasts. All Magnum Roller Rocker Arms are...

and Ford V8 429-460 Applications are the ultimate street Rocker. With a 7/16" Stud diameter and 1.72 ratio, they are designed for Serious performance enthusiasts. All Magnum Roller Rocker Arms are...

These Magnum Roller Rocker Arms for Chevy V8 265-400 and V6 200-262 Applications are the ultimate street Rocker. With a 3/8" Stud diameter and 1.6 ratio, they are designed for Serious performance...

Applications: Chevrolet Small Block 265-400 c.i.d. V8 3/8" Studs / 1.6:1 Ratio. Magnum Roller Rocker Arms. Magnum Roller Rockers are the ultimate street Rocker because they were designed with the...