The Ultra Pro Magnum™ Roller Rocker Arms not only uphold the high standards of the original Pro Magnums™ but also elevate stud mount rocker performance, stability, and value. Crafted from 8650 chromemoly material with an arched, web-like design, these rocker arms deliver increased strength and rigidity while reducing the moment of inertia and optimizing dynamic balance. A distinct black oxide exterior finish adds corrosion resistance and enhances overall durability. Featuring oversized trunions, precision-sorted needle bearings, and hardened roller tips, these rocker arms are designed for peak performance and dependability. Optimized retainer and valve spring clearances enable the use of most diameter springs, retainers, and +.050" locks without any clearance or fitment issues.
Ford V8 289-302-351W - 3/8" Stud - 1.6 Ratio
- Investment cast 8650 chromemoly body and arched, web-like design for increased strength and rigidity while reducing the moment of inertia.
- Unique black oxide exterior finish for corrosion prevention and increased durability.
- Optimized retainer and valve spring clearances for use with most diameter springs, retainers, and +.050" locks without clearance or fitment issues.
- Feature oversized trunions, precision-sorted needle bearings, and hardened roller tips.
- Lifetime Warranty guarantees 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
