I bought my coupe about 50 years ago. I immediately took it apart, body off, with hopes of restoring it. I didn't have a clue what I was doing. I had the engine rebuilt at Pioneer Valley Model A in Chicopee, Massachusetts about 40 years ago, but I never ran it. Well life and family took precedence over the Model A. Now fast forward to 2023. The engine was locked up solid. Over a period of a couple months I pulled the pan and head and kept soaking everything down with P B Blaster and ATF mixed with acetone and finally got the engine loosened up. I put the engine back together and started it for the first time today.
I couldn't run it long, radiator is not installed but it ran pretty well. It needs some carburetor work, but I'm am pleased with the progress.
Joe in southern New Hampshire