i am assuming the vehicle id number on my title of my 1939 is an engine number(14991**). this does not match the engine number that is in the truck. the engine in the truck is a higher number. the number appears to start and end with a I, or is that supposed to be number one. if it is a number one than it would be (18255**). that would make both engines 1938s by what info i have seen here. can any body help me confirm this. thank you