Description
Rocker arm geometry directly impacts valve timing accuracy and lift consistency—two critical factors that separate a well-tuned engine from one leaving power on the table. The Comp Cams Ultra Pro Magnum XD delivers a solid 1.6 ratio with full roller design, reducing friction and wear while maintaining reliable valve actuation across the RPM range. If you’re building or refreshing a Small Block Chevy with serious performance intent, these arms are engineered to support aggressive cam profiles and extended valve events without compromise.
- 1.6:1 Ratio
- Full Roller Design
- Chromoly Construction
- 7/16″ Stud Mount
- Small Block Chevy
- Set of 16 Arms
- Ultra Pro Magnum XD
- Bolt-On Installation
