Haven't seen official output numbers for the 6.7 Powerstroke that's going into the 650s & 750s, but it's been upgraded a fair bit all across the board. In the '15 250/350/450 it's now rated at 440 hp / 860 lb-ft. New fuel injection, larger turbo, improved exhaust brake, new crank, rods, beefier cylinder heads, etc,…