Description
Product Overview
The Comp Cams Magnum Roller 1.6 Ratio rocker arm set is designed for the front valve train of Ford 289‑351W engines. Constructed from high‑strength machined steel, each rocker features a 1.6:1 rocker ratio that provides quicker valve lift and reduced spring pressure, enhancing airflow and power potential. The set includes two 3/8″ stud arms, fully finished for corrosion resistance, and weighs 4.95 pounds. With dimensions of 10.07 x 5.27 x 2.12 inches, it fits seamlessly into the existing engine architecture while delivering a noticeable performance edge.
Usage
Ideal for street performance builds, weekend racers, and classic Ford restorations, this rocker arm set thrives in environments where precise valve timing and durability are critical. Whether installed on a daily driver seeking smoother acceleration or a track car demanding rapid valve response, the Magnum Roller set provides consistent operation under high RPM conditions. 
Why Choose Us
Comp Cams brings decades of camshaft and valvetrain expertise, ensuring each component meets rigorous engineering standards. The Magnum Roller series is tested for wear resistance and heat tolerance, guaranteeing longevity even under aggressive driving. Our U.S.-based manufacturing guarantees tight tolerances and quality control, while the universal fit design simplifies installation without the need for additional modifications.
Key Features
- 1.6:1 rocker ratio for increased valve lift and faster response
- Precision‑machined steel construction for superior strength and wear resistance
- Universal fit for Ford 289‑351W engines, eliminating compatibility concerns
- 3/8″ stud design simplifies installation and ensures secure mounting
- Corrosion‑resistant finish extends service life in demanding conditions
FAQ
Will this set fit a 351W engine with a custom camshaft?
Yes, the universal fit design accommodates standard 351W bolt patterns, and the rocker arms work with any compatible camshaft that uses a 3/8″ stud.
Do I need to replace pushrods when installing these rockers?
While not mandatory, upgrading to high‑quality pushrods is recommended to fully benefit from the increased rocker ratio and to maintain proper valve train geometry.
Can the rocker arms be used in a street‑legal vehicle?
Absolutely. The Magnum Roller set meets emissions and durability standards for street use, providing performance gains without sacrificing reliability.
What torque specification should be used for the studs?
Install the studs to the manufacturer’s recommended torque, typically 30‑35 ft‑lb, to ensure secure attachment without overstressing the components.
Is any special break‑in procedure required?
After installation, run the engine at moderate RPMs for the first 30 minutes to allow the roller surfaces to seat properly, then resume normal operation.




TYC 4-Pin Air Cooling Radiator Fan Assemblies
Reviews
There are no reviews yet.