For 2011, Ford has taken its F-250 (three-quarter-ton), F-350 Super Duty (one-ton), and F-450 pickups and infused them with even more of the things owners hold in high regard--namely powerplants.

While they share the looks of the popular F-150, the Super Duty series is a workhorse like no other. The trucks offer best-in-class towing and hauling capabilities, thanks in part to an impressive ...