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COMP Cams Ultra Pro Magnum XD 1.6 ratio rocker is a stud-mount component for Chevrolet 396–454 Big Block engines using 7/16" studs. Machined from durable 8650 steel with a billet pushrod seat insert, this rebuildable rocker provides accurate valve motion and improved stiffness. Precision-sorted needle bearings and hardened roller tips enhance load distribution and longevity for heavy-duty performance and racing applications.
COMP Cams Rockers CB 1.6 7/16in Ultra
