Appaerently, Ford announced today the new 6. 0would be rated at 560 lb ft. Thats up from the 550 they had originally announced. The wars continue. It's hard to believe that a few years ago, the truck I had, a '97 Ram V10, had the most torque available in lickup, gas or diesel, at 450 lb ft. That really seems quaint now. 
