The Ultra Pro Magnum™ Roller Rocker Arms not only match the high standards of the original Pro Magnums™ but elevate stud mount rocker performance, stability, and value to new heights. Crafted from 8650 chromemoly material with an arched, web-like design, these rocker arms enhance strength and rigidity while reducing the moment of inertia and optimizing dynamic balance. The unique black oxide exterior finish adds corrosion resistance and durability.
Key Features:
- Chevy V8 265-400 cid (SBC) - 1988 and later with Self Aligning Rockers - 3/8" Stud - 1.52 Ratio.
- Investment cast 8650 chromemoly body with an arched, web-like design, enhancing strength and rigidity while minimizing the 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 clearance or fitment issues.
- Oversized trunions, precision-sorted needle bearings, and hardened roller tips for superior performance and dependability.
- Lifetime Warranty, ensuring 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
