Those V8 diesel engines are the 6.6 Duramax found in offerings from General Motors, and Ford's 6.7 Power Stroke. As you probably know, General Motors (GM) produces two distinct lines of full-size ...

Ford's 7.3-liter Power Stroke made 250 hp and 505 ... freer-flowing turbo inlet reducing intake and exhaust pressures. The LB7 was also the last Duramax not to run a diesel particulate filter ...

Ford certainly has the upper hand as the all-new Power Stroke 6.7-liter has plenty of potential left in it, while the 6.6-liter Duramax is a revised version of an older engine design and has used ...