Exact replica Motortechnic Mfg. Panhead 1948-1954 engine cases ( Left side only )which meet or exceed highest restoration demands. Cast from MAG 10 Aluminum and machined on our 5 axle CNC machine for strength and precise fitment. Intended to work with stock or identically constructed engine components. Finished and detailed like the original counterparts with Casting numbers and Date code plates, these cases will smoothly blend into your old Motorcycle to give it a new life. Case is bead-blasted. Brand is munufactured by Motortechnic Mfg.