Ok so the truck is going to take a different turn. Due to the lack of suspension and brake parts, the cab will be going on a newer chassis. Option one: First/Second Gen dodge chassis 5.9 Cummins NV4500 Transmission.
Option 2: 70s-80s F250-F350 Chassis pulling my 391 and 5 Speed. I'm torn between the two options. I love the idea of the truck having a stack and rolling black smoke down the highway. It just brings a nostalgic feel, and makes me sing part of Dave Dudley's "Six Days on the Road". I also like the idea of performance building my 391 with a 390 top end. I'm interested in Hearing Your Opinions.

 

Rolling black smoke will not make you many friend here. I did vote for the Cummins.

 

Cummins also.

 

Hey man it's us Tennessee boys that have the facination with blacksmoke, it's just cool.

 

You will love the Cummins.
I have a 94 12 valve Cummins in my 56 f600, been driving it for 6yrs now without "rolling coal"
Black smoke will attract unwanted attention....red lights & siren.