Ultra ARC Aluminum Narrow Body - 3/8 Polylock. The Comp Cams Ultra ARC Aluminum Series Rocker Arms increase engine power, improve valvetrain stability, and enhance oiling efficiency. Their extruded design—developed using FEA analysis—creates a stronger, stiffer rocker body without adding unnecessary weight. The ARC series rocker arms feature an Arced, Recessed, Contoured design delivers an optimal strength-to-weight ratio. Backed by a Lifetime Warranty—buy them once and use them forever. Engineered for applications running up to 700 lbs of open spring pressure.
- Category:
- Engine Components>Rocker Arms
- Clearance Item:
- N
- Core:
- N
- LTL:
- N
- MPN:
- 4633-1
- Proposition 65:
- Y
- Special Order:
- Y
