The Ultra Pro Magnum™ Roller Rocker Arms designed for Chevy V6 200-262 cid and V8 265-400 cid (SBC) applications not only maintain the high standards set by the original Pro Magnums™ but also redefine stud mount rocker performance, stability, and value. With a 3/8" stud diameter and 1.6 ratio, these rocker arms are crafted from 8650 chromemoly material and feature an arched, web-like design that enhances strength and rigidity while minimizing the moment of inertia, optimizing dynamic balance. The unique black oxide exterior finish prevents corrosion, ensuring increased durability.
Key Features:
- Investment cast 8650 chromemoly body with an arched, web-like design for enhanced strength and reduced moment of inertia.
- Unique black oxide exterior finish for corrosion prevention and increased durability.
- Optimized retainer and valve spring clearances, accommodating most diameter springs, retainers, and +.050" locks without fitment issues.
- Oversized trunions, precision-sorted needle bearings, and hardened roller tips for superior performance and reliability.
- Lifetime Warranty, guaranteeing rocker bodies against breakage for life, suitable for applications with up to 850 lbs of open spring pressure.
- Local Pickup Available:
- No
- Local Delivery Available:
- No
- Additional Handling:
- No
