I have to chime in here, I have a 73 F150 with a 390 in it. The 390 is one of Fords better engines. I rebuilt it about 6yrs. ago ( 90,000 mi. on it) it still will spank any of the newer Chevys, Fords or Dodge gas engines comming up I70. It has a few upgrades and a NV4500 5 speed from a Dodge which gives it some legs for top speed.
My 79 Dodge has had a 360 in it and later a 440 also both ran very strong.
The Ford 6. 0 PSD is another story, a friend at work has one, a fully loaded 04 1 ton. It's been in and out of the shop 11 times since new for head gaskets, injectors, coolant leaks etc. He is truely brand loyal and says he will never own a Dodge, his tough luck!
Yesterday my wife and were going for a walk and a 6. 0 PSD passed by us it sounded like it was shooting Ducks, just running terrible.
My wife even picked up on it and asked what was wrong with that truck!
I think that this is going to bite all of us in the butt on way or another, with the layoffs of 30,000 plus workers and the effect on our economy.
I don't feel sorry for my friend with his attitude about Fords and his dislike for other brands, his head is in the sand.
My 2cents
Chuck E.