Proform Engine Roller Rocker Arm Set; 1.5 Ratio 7/16 Stud; Aluminum ; Fits SB Chevy 66909C

Rid your engine of internal friction with roller-tipped rocker arms. The race-proven full cage 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. Each rocker arm has a laser etched PROFORM "P" logo. 16 anodized aluminum roller rockers and 16 poly locks are included in the kit.

Engine Roller Rocker Arm Set | 1.5 Ratio 7/16 Stud | Aluminum With Full Cage Bearing Trunnions | Fits Small Block Chevy | Blue Anodized Finish with Laser Etching | Use With A Max Spring Diam. Of 1.400 Inches | Poly Locks Included | Set Of 16 Pcs