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COMP Cams Ultra Pro Magnum XD 1.7 ratio rocker arm set (8-piece) for 7/16" stud Ford 289, 302 and 351 Windsor applications combines 8650 steel construction with a machined billet pushrod seat insert. These rebuildable rockers include precision-sorted needle bearings and hardened roller tips to better distribute load and reduce wear. FEA and CAD-optimized XD geometry enhances stiffness and MOI for drag, circle track and endurance use.
COMP Cams Rockers FS 1.7 7/16in Ultra Pro
