The AM13 engine is a 1.3 liter 4 cylider automotive engine of 100 hp converted to aircraft use. This engine is comparable in power and/or weight to the Rotax 912 and Continental O-200. Built in both upright or low profile slant versions. The upright versions are mostly used in trikes, light twins and replica aircraft that require a narrow engine package. The low profile slant version places the engine at 70 degrees from vertical to fit more conventional cowlings. Our low profile 70 degree slant version is internally designed from the factory to be mounted at an angle and this is not an aftermarket modification that may effect reliability.All of our engines are assemble by us from all new parts. We never use any unknown JDM, used, "rebuilt", "on condition" or other junk yard parts by any name. Why buy a used engine when you can buy all new for less.