I've got a 5.4 in 09 Majestic 23 P. They don't make it anymore. Perfect size IMO. Anyways it has the smaller V-8 Triton motor and I'm always on gas pedal and get about same MPG as the V-10 people. And go about the same speed. But remember I'm always on it. I would go for V-10 if it were me, if other things being equal. Does 450 have bigger brakes? more CCC? stronger suspension?
Wait till you hook up your toad if you think power is question now.
Little 5.4 does great job and leaves driveway at 11,380 pounds. But on the MTN grades I can hear it saying "I wish I could, I wish I could":) :)
I'm very happy with the 5.4 but it is not a ball of fire.
