Is it hard to engine swap a v10 to a 5.9 cummins?

 

No if you have the basic knowledge. You will need the Cummins PCM and engine harness. The tranny will bolt up I think. They used two transmissions I think 47RE and 48RE?. If not though you will need the tranny. The engine should bolt up if you get the mounts to. I went from a Diesel to a 360 and it was actually really simple. I'm selling a 12V auto and a 24V 6spd both have 4X,XXX miles if you are interested

 

Is he wanting to swap a v10 into a cummins equipped truck or the other way around?