Colorado_Outback
Adventurer
Tube work is looking good!
Seems like there would be a lot of down time with a diesel swap. A 5.7 or 383 even would get you plenty of power and the conversion parts are practically bolt on.
I'd go with the newer LS series V-8's. Far superior in every way to the SBC while still being extremely affordable and a "bolt it" swap.
I do have an LS6 for sale if you are interested.