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.
![](https://i0.wp.com/zuczek1302.com/wp-content/uploads/2019_AS41_Build/Day5/AS41_Build_Day05-1.jpg?resize=640%2C429&ssl=1)
While the exterior needs to be cleaned up, the fins themselves are in perfect condition compared to the AR and AJ2 engines.
![](https://i0.wp.com/zuczek1302.com/wp-content/uploads/2019_AS41_Build/Day5/AS41_Build_Day05-2.jpg?resize=640%2C360&ssl=1)
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.