After running my 408W this summer, I would not look anywhere else. 2" body lift and the 3" tall air cleaner still just clears. Swap was basically painless. If my early block wasn't enough at 415 hp/450 ft lbs, a roller block has an additional 100 hp at redline. And if that's not enough, you could go with an aftermarket block for more cubes. And even then, it is a pretty economical swap in the long run as compared to an Ecoboost or Coyote. My engine has so much torque it's hard to not drive it like a 16 year old...