The Chevrolet Silverado HD — and its corporate twin in the GMC Sierra HD — can be had with either a standard 6.6-liter gasoline V8, or the optional 6.6-liter Duramax turbo-diesel. Opting for the TD ...
What's the Displacement of the L8P? Just like the L8T this performance version is based on, the L8P displaces a glorious 6.6 liters! Yep, that's 400 cubic inches if you live in the country that walked ...
Way back in December 2022, Chevrolet Performance launched a crate version of the naturally aspirated 6.6L V8 L8T gasoline engine found in the Silverado HD and Sierra HD pickup trucks. As the only Gen ...
Two brand-new 2025 trucks battle for the win. Which one is a better choice: the half-ton GMC Sierra or the heavy-duty Chevrolet Silverado? A fuel-efficient 3.0-liter Duramax or a 6.6-liter Duramax V8?
General Motors has been using Duramax diesel engines in certain workhorse models for nearly a quarter century. The 6.6-liter V8 version which powers Chevy Silverado 2500/3500HD and GMC Sierra Heavy ...
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