Yeah, our 1995 K2500 diesel 'Burb was last Summer's project: pulled the original engine and replaced it with a new AMG updated 18 to 1 compression HUMVEE refit engine bought right off the assembly line in Ohio. Turns out the original engine had flaking bearings from the old head gasket loss back in 2013. Found out from an oil analysis. Lucky I pulled it because we found all the main webs had cracked in the block. (A common malady with these). Here's that thread in case you need some heavy (pun intended) entertainment.
https://www.dieselplace.com/forum/63...camper-18.html
We bought this truck brand new back in 1995 so she's a keeper!