S&S Crankcase assy 4-1/8" blck FXD06-17

Stock looking but stronger crankcases as they are made out of superior 356-T6 aircraft grade aluminum with thicker wall sections, reinforced front motor mounts, Timken sprocket shaft bearing and come complete with cylinder studs and cam bearings installed, making them strong enough for even the most demanding applications. Cases are powder coated and clearanced for up to 4 13/16" stroke and cams up to .720" lift. Installation requires the separate purchase of an oil line routing kit.