As noted by Inside Line, Ford decided not to go with ... Those numbers would put the Super Duty ahead of both Dodge’s 5.9L Cummins turbo diesel (325 hp/610 ft-lbs.) and GM’s 6.6L Duramax ...

The high-output six-cylinder Cummins, found in heavy-duty Ram trucks, posted power ratings comparable to the standard-duty V8 Power Stroke available in Ford Super Duty trucks. However, the newer ...