I am the proud owner of a 79 C-10 with the Olds 5.7L Diesel.
I just bought it for $250.00.
I bought it specifically for the motor. I'll be putting it in my 85 C-10.
yes, the Olds 350 Diesels had issues Basically too few head bolts that weren't strong enough but, it's nothing that can't be overcome, especially with the later DX Blocks. If your curious and want to know more about the Olds Diesel check out
olds-diesel.com
I love the smell of diesel in the morning. Personally I prefer to throw $$$ at an old Boxy Chevy than any of the junk on new car lots nowadays. A DIY frame up on a 73-87 2WD truck costs less too.
I am sure you know that the Bolt Pattern on the bell housing of the TH400 in your truck will be different than a SBC / 6.2L / 6.5L engine. You'll either need a tranny with a Chevy pattern or a
BOP to Chevy Adapter