The 6.6 Duramax and 6.7 Power Stroke are two engines powering some of the most well-known pickups in the country, but how do they compare?

gross vehicle weight, which means the new diesel engine will find a home in GM's half-ton pickups and probably its GMT900 full-size SUVs. GM'S 2007 Duramax 6.6L V-8 Turbo-Diesel Delivers Class ...