.498″ valve lift. Set includes two chain driven camshafts. A cam drive installation kit, that includes a gear cover gasket, cam bearings and retaining ring can be ordered separately as S&S (531691) or Andrews (503421). Cams can be run with stock hydraulic lifters. Bolt-in. More torque for allround riding. 88-96 inch and std CR, stock pistons and heavy bikes. Works well with both carb and injection. Stock springs OK. 1700-4800 RPM.