That is an amazing find! Get the whole engine if you can. Also the bellhousing, clutch and transmission.
This is a rare engine used only in heavy trucks. The parts will not fit anything else so without the whole engine they would be no good unless you want to hang them on the wall.
I'm thinking that engine in an old Dodge or Fargo pickup would be a real conversation piece! Don't forget to reinforce the front springs ha ha.