COMP Cams 1806-1 Ultra Pro Magnum XD Roller Rocker Arm with 1.65 Ratio and 7/16\ Stud Diameter for Small Block Chevrolet
- For Small Block chevrolet applications, 1.65 ratio, 7/16 inch stud.
- 8650 steel construction outlasts and outperforms other rockers in accuracy and strength.
- Ultra Pro magnum XD rocker arm bodies are guaranteed against breakage for life.