Originally Posted by
armynavyguy
The V10 has a 52 Hp advantage, torque is close to a 100 ft lbs. difference and it really doesn't get any worse gas mileage the the V8.
I believe it is actually a 62 hp advantage. Regardless, the v10 is a much better choice, IMO, for a truck as heavy as the Super Duty. If you tow heavy at all the 5.4 will have a hard time pulling in OD and we all know what that does for mileage.