COMP Cams Ultra Pro Magnum XD 1.7 ratio rocker is built for 3/8" stud Ford 289, 302 and 351 Windsor applications. Machined from 8650 steel and featuring a billet pushrod seat insert, this rebuildable rocker uses precision-sorted needle bearings and hardened roller tips to reduce wear while accommodating most spring and retainer diameters. XD geometry optimized by FEA and CAD improves strength, stiffness and MOI for track use.
COMP Cams Rocker FS 1.7 3/8in Ultra Pro