Out of all of the oil coolers I have, the one from the AH engine is in the best shape with no bent fins at all. I mean, that engine never was disassembled so my opening the tins was the first time in 44 years it had seen the light of day.
While the exterior needs to be cleaned up, the fins themselves are in perfect condition compared to the AR and AJ2 engines.
I have it filled with mineral spirits for now to try and dissolve any oil residue
So yeah, there will be a even more of the original engine going back into this new one.