The 6.6L Duramax diesel engine has made an appearance in the Chevrolet Silverado and the GMC Sierra over the years, and both ...

However, if you want to know everything about Chevrolet's 6.6L Duramax diesel engine, you should also consider some of the issues owners have widely reported. After all, no engine is perfect ...

General Motors’ 6.6-liter Duramax LB7 was a state-of-the-art V8 diesel engine with four-valves-per-cylinder producing 235 to 300 hp and 500 to 520 lb-ft of torque. In addition to a turbocharger ...

The 2025 GMC Sierra 2500HD Pro Regular Cab Long Box is equipped with a[n]Gasoline 6.6L V-8 engine that can produce up to 401 hp @ 5200 rpm horsepower and a maximum torque of 464 lb-ft @ 4000 rpm.