− Decrease quantity for Rocker Arms, Ultra Pro Magnum, 7/16 in. Stud Mount, Chromoly Steel, 1.6 Ratio, Ford, Small Block, Set of 16 Quantity + Increase quantity for Rocker Arms, Ultra Pro Magnum, 7/16 in. Stud Mount, Chromoly Steel, 1.6 Ratio, Ford, Small Block, Set of 16 Add to cart