Hello my name is Kevin and I work for a Jet engine parts broker. We're venturing into new territory as we a have an overseas customer looking for Lycoming IO-360 M1A prop engines. The more I read about them the more I'm getting confused. 1. Is there more than (1) version of this engine (M1A)? If there is, is it interchangeable from aircraft to aircraft? Which aircraft does it go into? Any insight and information about this particular engine will be greatly appreciated. Thanks, Kevin