The GM L5P Duramax is a turbo-diesel engine produced by General Motors for use in full-size heavy-duty (HD) pickup trucks. Displacing 6.6 liters in a V-8 configuration, the L5P is part of a new ...

Update: the numbers for the new Duramax L5P are officially in. First things first: the current 6.6L V-8 Duramax LML under the hoods of GM’s 2016 model year trucks is rated at 397 horsepower and 765 ...

Picture this: you're a proud owner of a modern vehicle, equipped with all sorts of smart features and advanced technology. But there's a catch – your vehicle's performance is governed by the dreaded ...

445 horsepower (332 kW) and 910 lb-ft (1,234 Nm). That’s how potent the redesigned Duramax 6.6-liter V8 is for the model year 2017. Internally referred to as L5P, the newest Duramax is available in ...

Enhancing performance of the 6.6L Duramax L5P diesel engine that powers '17-to-current GMC and Chevrolet trucks is not an easy proposition. General Motors' calibration engineers have made it very ...