2024 6.6 Duramax Vs 6.7 Powerstroke. 6 duramax is praised for smooth power delivery and a balance between torque and. The l5p duramax and 6.7 powerstroke are turbo diesel engines produced by general motors and ford, respectively.

The l5p duramax and 6.7 powerstroke are turbo diesel engines produced by general motors and ford, respectively. Both the 6.6 duramax and the 6.7l powerstroke are known for their reliability.