Stock or 4-1/8″ bore crankcases to be used as a foundation for a custom engine or replacement for T111, T124, or T143 Stock looking, but stronger; thicker wall sections and superior 356-T6 aircraft grade aluminum Tough powder coat finishes Reinforced front motor mount for extra strength Timken? sprocket shaft bearing ? Strong enough for the most demanding applications Clearanced for strokes up to 4-3/16″ and cams up to .720″ lift Includes pinion and Timken? bearing Manufacturer’s Statement of Origin (MSO) included Includes studs and cam bearings installed Crankcases are specially machined for the new S&S oil line installation kits sold separately Made in the U.S.A. Requires Oil supply line installation kit PART #s 0950-0848 or 0950-0849.