I like the idea of using a Jeep six and manual tranny in an old car. I like straight sixes, and with a
manual transmission they sound so much better than with an autmatic. One of my most fun cars
was actually a truck, a GMC B10 (Brazilian made). it was fun and it had a great soundtrack and
was easy to drive, clutch was light and the four speed worked nicely.
More modern drive trains come with a bunch of computers and stuff. Most modern engine swap
I did was the 1987 TPI engine in my '57 Pontiac.
Sorry, no fun suggestions for engine swaps, just thinking that you'd gotta get something with a
lot of common info (TPI was great because of that), and preferably the whole car, so you can get
all the components you need for the project.