Unmachined kit.Technical details as per the Steam Engine No 2AM   

ften adapted for small marine applications, this engine has a simple but unique porting system. The head oscillates as it runs, swinging the port holes from inlet to exhaust. A great novice engine as well as fun for the experienced enthusiast. This comes as a casting kit for the machinist. All hardware, gasket material, bar stock and 6 aluminum sand castings plus complete working drawings are included.

Machining and assembly required.