Scorpion 3/8" Stud Mount Rocker Arm 1.60 Ratio Full Roller Narrow Body - Self-Align YA0825MM20 Each of our serpentine water

Each of our serpentine water pump pulleys has a 7th groove for ease of alignment

20 in Deep

Peterson's gilmer pulleys are machined from aircraft quality aluminum to exacting tolerances to insure concentricity and accurate fit

Calibrated specifically for use on circle track

Scorpion 3/8" Stud Mount Rocker Arm 1.60 Ratio Full Roller Narrow Body - Self-Align YA0825MM20 Each of our serpentine waterProduct Description: Rocker Arm 3 8 in Stud Mount 1. 60 Ratio Full Roller Narrow Body Self Align Aluminum Blue Anodized Small Block Chevy Sold Individually Scorpion is an authority in racing engine parts and the leading manufacturer of rockers in the U. S. Every product Scorpion makes is dyno tested and race proven before it is ever offered for sale to the public. The result of this is top quality race winning parts and very satisfied customers.