To add to what tinker said, there weren't many automotive applications for that engine in North America and what few there were came from Canada. Now industrial and marine applications are a different matter but yours obviously isn't a marine engine. If you really want to know more, I suggest you find one of the CJ-10A groups out there, to compare features, numbers, etc. The calibration numbers on the injection pumps would be telling as well if you could match them to a CJ-10A... or whatever. Hopefully you don't have an industrial engine. If you do, you will find the power range pretty limited. IIRC, it came attached to that transmission and it has a case with a mount for a transfer case adapter. If that's true, logic dictates it came from a CJ-10A. Those things and their parts somewhat flooded the surplus market some years back.