Me and my best friend put a '58 Chrysler 392 in a '67 satellite back in the late '80's. We got the engine very cheap, around $50 and went from there. Mopar Action ran a article decades ago, about this same swap, if you can find it, E-Berg's tech article was fantastic. We ended up using MP's electronic small block ignition with a brass spacer that worked perfectly. A local machine shop, long out of business, had a guy who worked and still raced these engines. His help was priceless. A lot of the bottom end bearings used LA engine bearings. Had a guy in Gran Rapids regrind a MP 509 purple shaft camshaft. Weiand two four intake manifold, Holley 650's carbs. We used our own shop built adapter plate and ran a 833 4-speed transmission. At that time most Napa parts stores still had a inventory of water pumps and gaskets sets, not many, but they still had them laying around.
I would stay away from the Dodge, Desoto and Imperial HEMI engines. And the old polyhead Plymouth engines. These engines are almost impossible to find parts for and require an insane amount of custom fabrication to make it fit in a 60's Mopar. No, not one piece will enter change between them! Not even the starter motors interchange. Likewise, there is some decent Chrysler 354 pieces still a round, but i would be cautious there. I would avoid the 331 HEMI's all together, there reliability was not the greatest.
All i got to say is just DO IT. You will not regret it. I regret the day we had to sell the car as our careers had us on different sides of the country, storage fee's were ever increasing and it was impossible for us to end up back home at the same time to take the car to the track.
