[rotorwrench]

It's could be for a car, a truck, a universal carrier, or an industrial fixed mount application. It has what appears to be a plug where the oil cooler & filter set up would be plumbed in. It has the removable lower bell for a truck application. It may very well be an engine that went unused. I've seen where engines were removed from vehicles and put back into the crate that the replacement came in or it didn't function correctly and was reinstalled back into the crate. It would still be a good core. If it is still coated with cosmoline then is is more likely to be unused surplus or remanufactured surplus. They pickled military stuff pretty well whether new or depot overhauled.

The Ford T16 carrier used the 29A engines but most US built Ford trucks had the G series 6-cylinder. A lot of the Canadian Ford CMPs had a version of the 99A engines as well. Most universals had the 81A type like that one. Other trucks were built that may have had the 81A engine with 81T type heads.