The engine produces nearly 400 horsepower with the peak torque 765 lb –ft. In this 2016 Duramax Specs review, we also want you to know that the engine has new system called Diesel Particular Filter. The emission system that produced is lower because it will always be cleaned periodically. That way, the engine will be more durable and long lasting. For those who want to buy a diesel pickup truck, then the new Chevrolet with Duramax engine should be on your list. There are other pickup trucks on the market but this one is different.