The 6.4-liter and 6.7-liter Power Stroke Diesel engines are different sizes and made by different manufacturers -- one by ...

The partnership between Ford and Navistar International was once considered a model collaboration. The celebrated arrangement began in 1982 and saw International Truck and Engine Corporation (later ...

Folks familiar with modern diesel engines will tell you that they’re infinitely more complicated than the heavy-hauling workhorses of the ’70s and ’80s. Most of this boils down to ramped-up efficiency ...