Noooo lol, if you put a V6 in that big of a truck.. you might just sit there and go about 2MPH.
It's a 5.9L Cummins Turbodiesel. It's a L6 engine, ISB. Basically which means it is an engine made for a tractor (Case IH tractor company).
It's pushing about 585HP and 1280 FT/LBs of torque.