| Brand |
ProForm |
| Model |
66907 |
Designed for select Chevrolet Small Block Engines1.5 Ratio for 3/8" studsFull needle bearing fulcrum and roller tipReduces internal valve train friction16 extruded aluminum roller rockers and 16 poly locks.Proform extruded aluminum roller-rocker arm has a 1.5 ratio, 3/8" stud and fits select Chevy small block engines. Reduces internal valve train friction and valve stem wear. Full needle bearing, fulcrum and roller tip unleash horsepower. 16 extruded aluminum roller rockers and 16 poly locks.