Also comparing the 3 valve 5.4 designed in 2004. Compare it to the 5.4L successor the 6.2L which is 411 horsepower and 434 torque that is a fair comparison of current day figures
Nope. 6.2 will NEVER be available in the Expy. 5.0 would be the Motor that would be the most likely to hit the Expy. The 6.2 is a BEAST, but it also terrible on MPG. It is a good counterpart to the 6.7 for the SD. The discussion from the OP compared the 5.4 to the 3.5TT. I simply brought ACTUAL Dyno to the wheels real world numbers into the discussion.