Proform 66907 Extruded Aluminum Roller-Rocker Arm, 1.5 Ratio, 3/8" Stud
Special Features
- Designed for select Chevrolet Small Block Engines
- 1.5 Ratio for 3/8" studs
- Full needle bearing fulcrum and roller tip
- Reduces internal valve train friction
- 16 extruded aluminum roller rockers and 16 poly locks.
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