The 2020 Chevy Silverado HD receives a host of upgrades to increase performance.
Heading into retirement is the 6.0-liter gas engine. A more powerful gas V8 takes its place. 
The Duramax power figures are unchanged but new cooling methods boost towing numbers.
From the engines and chassis, to all the towing tech: an in-depth look at the new Silverado HD.

Chevrolet has been teasing us with the new Silverado HD since last year. We knew it would look like a hulked-up Silverado 1500; we were expecting it to be, per Chevy’s promises, the strongest and most capable Silverado HD ever made. After debuting earlier this year, we felt an in-depth look on the inner makings of the 2020 Chevy Silverado HD was in order.
Turns out, our lucky stars were smiling upon us. We had the chance to chat with Bob Walczyk, Chevrolet Product Marketing Manager for light and heavy duty pickups. If there?s one person who knows every nut and bolt in the new Silverado HD, it would be Bob Walczyk. ?I?ve actually been working on this new generation truck since its inception,? he said. ?I?ve been quite intimate to the vehicle all along the process here. It?s very exciting now to see this thing on the road.?
2020 Chevy Silverado HD: What?s New"
Let?s proceed to the most obvious part: the way it looks. No doubt, the new Silverado HD is bigger, longer, and taller than before.
In fact, the wheelbase is 5.2 inches longer than the outgoing model, with overall length increasing by a massive 10.4 inche...