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The COMP Cams Magnum Roller Rocker Arm for Chevrolet 173 V6 applications pairs a 1.52 ratio with a 10mm stud for street performance. Constructed from 8620 chromemoly steel, its roller tip reduces friction while a stiff design preserves accurate ratio and lift. Rated for use with up to 350 lbs open spring pressure, these rockers are positioned to improve power by roughly 15–30 horsepower versus stock-style arms.
COMP Cams Magnum Roller Rocker CS 1.52
