Did that 5.3 just gain 50 hp ? It only has 355 hp not 400, that's only 30 more than the ecoboost. The torque is almost identical 375ft lbs on the Ford 383 for the Silverado . While were at it, the Chevy will not pull the Ford with the trailer attached either.No half ton truck ive seen has a 12xxx lb tow rating.