Military flathead engines

[carguybill]

I have a '50 or '51 Ford Flathead engine that I suspect came out of a military vehicle because it has a tag on it stating that it was rebuilt at Fort something ( I don't remember for sure).


My question is are Military engines different from passenger car engines, and if so, in what way are they different? Also are there any ways to confirm that, in fact, what I have is really a military engine?


Thank you.