Engine compatible with other cars

Hi all I was wondering if/how I could make an engine mod compatible with a vehicle like the md for example I have no idea on how I can do this and was hoping that someone here would know how I could do this

thanks in advance

 

This is an old tutorial, but it's good for learning the basics of this stuff:
https://beamng.com/threads/tutorial-porting-engines-and-other-parts-inbetween-vehicles.28730/