In its early years, the CP3 paired with the third-generation 24-valve 5.9-liter Cummins engine, which had variants that could push upwards of 305 horsepower and 555 pound-feet of torque. However, as ...

Back in "My Next Project Vehicle" editorial (July '10), we brought up the idea of building a sleeper Duramax pickup that would be able to produce more than 600 hp at the wheels yet still retain ...

General Motors brought out a new version of the 6.6L Duramax V-8 engine, known as the LML, for the 2011 model year. Among various other changes, the company replaced the previous Duramax’s CP3 ...