What Is The Best Diesel Engine For A Semi Truck?

What Is The Best Diesel Engine For A Semi Truck? 6.6L Duramax LB7 – Overall Best Diesel Engine. 6.7L Power Stroke – Best Ford Diesel Engine. 7.3L Power Stroke – Best Powerstroke Engine. 6.6L Duramax LP5 – Best Year Duramax Diesel Engine. Chrysler 3.0L EcoDiesel – Best Small Diesel Engine. 6.6l Duramax LBZ. Who makes