Proform Engine Roller Rocker Arm Set; 1.6 Ratio 7/16 Stud; Extruded Type ; Fits Olds V8 66860C

Rid your engine of internal friction with roller-tipped rocker arms. The race-proven full needle bearing, fulcrum and roller tip not only unleash horsepower, they also lengthen valve train component life and reduce wear and tear on valve stem tips. Precision machined to insure consistency and ratio accuracy. 16 extruded aluminum roller rockers and 16 poly locks.

Engine Roller Rocker Arm Set | 1.6 Ratio 7/16 Stud | Extruded Aluminum Type With Roller Needle Bearing Trunions | Fits Olds V8 Engines | Blue Anodized Finish | Machining Required For Installation | Poly Locks Included | One Set Of 16 Pieces