COMP Cams 7844-16 High Energy 5/16" Diameter 8.616" Length 0.060" Long Pushrod for Big Block Ford 429-460, (Set of 16) 5/16 inch diameter; 8.616 inch length High Energy Pushrod for Big Block Ford 429-460; 0.060 inch long Best choice when building street rods, RVs or daily drivers Meet or exceed all OE pushrod specifications Mate perfectly with High Energy and Magnum Rockers