Description
Rocker arm geometry directly impacts valve timing precision and overall engine efficiency—choosing the wrong ratio costs you horsepower and reliability. Comp Cams’ Ultra Pro Magnum XD series delivers consistent, full-roller performance with minimal friction, making them the go-to choice for builders targeting repeatable power gains on small block Chevy platforms. At a 1.5 ratio with proven chromoly construction, this set handles both street and competition demands without compromise.
- Full roller design
- 1.50:1 ratio
- 3/8″ stud mount
- Chromoly construction
- Small Block Chevy
- Set of 16 pieces
- Ultra Pro Magnum XD
- Bolt-on installation
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