Stock looking, but stronger - Thicker wall sections and superior 356-T6 aircraft grade aluminum Tough powder coat finish Reinforced front motor mount for extra strength Timken sprocket shaft bearing - Strong enough for the most demanding applications Clearanced for strokes up to 4-13/16" and cams up to .720" lift Includes pinion and Timken bearing Manufacturer's Statement of Origin (MSO) included Kit includes S&S Cycle crankcase, bearings, hardware and instructions