Swapping the engine in a 94 7.3 f-350 with the turbo to a 90-98 cummins. What is gonna be my biggest problem with putting a cummins in it? Does anyone know? Or how much fabricating i am going to have to do? any help would be awesome. thanks.

 

Destroked - THE Cummins Conversion Company : Home Page

Are you planning on just swapping the engine or the transmission too? I've read that some people have needed to move the Cummins engine/Ford transmissin back ~1" in order to get the mechanical fan to clear.

Check out the conversion section here (there's a '95 swap), PowerstrokeArmy and Competition Diesel have some other good swap stuff as well.