Comes as pictured. Selling as parts or repair. Has been sitting for awhile and is tough to spin the motor over, feels like it has nitro fuel gummed up inside. Cases have stamped number #658 and end cap is marked #666. Does make a full rotation no problem and from looking in the exhaust port the cylinder and piston look good. I removed this engine and pipe from a crashed jet plane, I assume it ran upon crashing but I've never personally seen it run. Pipe is approximately 19" long and exhaust chamber is about 13" long. If you have any questions please send me a message before purchasing. We ship daily.