Ford has bolstered its 2015 F-Series Super Duty pickup lineup with engine and chassis upgrades to offer leading horsepower, torque and towing power that truck lovers go crazy for.
In the highly competitive grunt wars in the full-size pickup segment, Ford is claiming it has best-in-class power under the hood from the second-generation 6.7-liter Power Stroke V8 diesel engine that delivers 440 horsepower, up from 400. Torque is now 860 pound-feet, up by 60, across all models from the F-250 to the F-450.
The new engine has a larger turbocharger and an engine block made of graphite iron, which is stronger and lighter than cast iron.
Source
The Detroit Free Press