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COMP Cams Ultra Pro Magnum XD 1.73 ratio rocker arm set for Chevrolet 396–454 Big Block engines uses 7/16" studs and is supplied as a set of eight. Machined from 8650 steel with a billet pushrod seat insert for precise ratios, these rebuildable rockers include precision-sorted needle bearings and hardened roller tips to improve durability and load distribution. They accept most spring diameters and are suitable for demanding track and street use.
COMP Cams Rockers CB 1.73 7/16in Ultra Pro
