Originally Posted by TXiceman
If you really want to step up the towing ability in the hills, go ahead and get a diesel. Problem is ford stopped making one of the best tow vehicles a few years back...the Excursion. The Suburban was good when you could get the old 7.4L (454 CID) and the 8.1L.
I agree. The 5.4L and 6.8L are "reasonable" motors, but they're really not that great for a lot of weight.
Want a great Ford motor, buy the 7.3L "powerstroke" diesel. They're in demand, are capable of making tons of power. The modern diesels put out more in terms of factory HP, are cleaner, but won't last quite as long.
As an owner of both a Ford 5.4L and 6.8L (with a banks kit). I can tell you: Go diesel. Turbo diesel.