I'm not sure, I bought the truck because it had this fresh engine in it. It can light up 38" Swampers (you know how soft they are) like they are spinning on grease. It was built as a pulling truck so I'm just guessing at around 400 h.p. We have Titans at work rated at 305 h.p. and it pulls alot harder than they do. I once pulled an old 2 ton AD boom truck up and out of a brush patch so I could rob it of it's wheels and other parts. Come to find out, the cable from the boom was still attached to some big chunk of iron and there was a 3-4" tree growing through the frame, not to mention all six of it's tires were sunk into the ground. She pulled it up and out of it's ruts, uprooted the tree and drug that iron plate about 20'. This truck is an animal, that's why I'm rebuilding it,LOL,
Scott
