The 6.6 Duramax is one of the most powerful engines for heavy-duty trucks like the Chevy Silverado and GMC Sierra, but how ...

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 ...

Coming in at number one on our list is an unsuspecting hero of the Diesel World. It's the outgoing Nissan Titan XD. It's powered by a 5.0-liter Cummins turbo-diesel V-8 that outputs 310 horsepower and ...

The Duramax V8 L5P has a displacement of 6.6 liters, which is slightly smaller than the 6.7L engines offered by Ford and Ram. Despite this, the L5P delivers 470 horsepower at 2,800 rpm ...

The 2024 GMC Sierra 2500HD has done just that by pumping the power of its 6.6-liter Duramax turbo-diesel up to 470 horsepower and 975 lb-ft of torque, which gives its Crew Cab configuration a best ...

You can bet that most buyers will spring for the 6.6-liter Duramax diesel, though, as it’s the more premium option with 470 hp and 975 pound-feet. Customers in this demographic care more about ...