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The COMP Cams Magnum Roller Rocker Arm for Chevrolet 173 V6 applications pairs a 10mm stud with a 1.6:1 ratio to deliver increased valve lift for street-oriented engines. Constructed from 8620 chromemoly steel and fitted with a roller tip, it minimizes tip friction and resists flex for consistent operation. Intended for use with less than 350 lbs open spring pressure, it offers a robust aftermarket replacement for OEM arms.
COMP Cams Magnum Roller Rockers CS 1.6
