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The COMP Cams Ultra Pro Magnum XD 1.55 ratio 3/8" stud rocker arm blends durability and refined ratio control for Chevrolet small-block and V6 engines. Machined from 8650 steel with a billet pushrod seat insert, these rebuildable rockers include precision-sorted needle bearings and hardened roller tips to reduce wear and better distribute loads. They are intended for 3/8" stud Chevrolet V6 and 265–400 Small Block applications.
COMP Cams Rocker CS 1.55 3/8in Ultra Pro
