COMP Cams Ultra Pro Magnum Rocker Arm Ratio SBC Stud

COMP Cams Ultra Pro Magnum stud mount roller rocker arms are full roller rockers for performance engines. They also go by the names roller rocker arms, full roller rockers and stud-mount rockers. They build on the original Pro Magnum rocker, with an arched, web-like design that adds strength, stability and value.

Key Features:

• Investment cast 8650 chromoly body: The arched, web-like design adds strength and rigidity. It also reduces moment of inertia (MOI) and helps optimize dynamic balance.
• Black oxide exterior finish: Helps resist corrosion for longer service life.
• Roller tip and bearing design: Oversized trunnions, precision-sorted needle bearings and hardened roller tips.
• Clearance: Optimized retainer and valve spring clearances work with most spring and retainer diameters and +.050 in. locks.
• Valve spring capacity: Rated to handle valve spring pressures up to 850 lbs.
• Made in the USA

These rocker arms suit street performance, street/strip and racing builds. They give accurate valve motion and durability in stud-mounted valvetrain setups. Choose the child item that matches your stud diameter and the rocker ratio you need.