COMP Cams Hardware Kit Retro Ford 289-4

Works on all Small Block Ford engines originally equipped with a flat tappet or roller cam; When using this kit in a non-roller block, a small base circle retro-fit cam must be used to ensure the lifters will not expose oil hole or band out of the lifter bores; Kit must be used with Part #851-16 or #877-16 lifters; Contains lifter retainer, lifter guides and cap screws;