Which new pickup truck is quicker and by how much? This is why we drag race trucks! This time, it’s about 2020 GM gas V8s and half-ton turbo-diesels! There is also a surprise truck joining at the end.
The first bracket race is between a 2020 Chevy Silverado 1500 Trail Boss with a 5.3-liter V8 / 10-speed automatic versus a 2020 Chevy Silverado 1500 RST with a 6.2-liter V8 / 10-speed automatic. It’s 5.3L V8 vs 6.2L V8! We know that the big V8 is quicker, but we need to get a proper 0-60 MPH time and drag race to see if this Silverado RST is the quickest GM truck we have ever tested.
As always, our test track is IMI Motorsports in Dacono, Colorado. The track is at about 1-mile above sea level, and the air density is about 17% less than at sea level.
The 5.3-liter V8 is rated at 355 hp and 383 lb-ft of torque. The 6.2-liter V8 is rated at 420 hp and 460 lb-ft of torque.
The next bracket race is between the diesel off-road half-ton trucks! It’s a 2020 GMC Sierra 1500 AT4 Diesel against a 2020 Ram Rebel Diesel. The GMC is powered by a 3.0-liter straight-six Duramax diesel. The Ram Rebel has a 3.0-liter EcoDiesel V6 under the hood.
The 3.0-liter Duramax I6 is rated at 277 hp and 460 lb-ft of torque. The 3.0-liter EcoDiesel V6 has a rating of 260 hp and 480 lb-ft.
The 6.2L V8 wins the first race, the 3.0L Duramax I6 wins the second. These two go up against each other, and the 6.2L V8 naturally wins again. Finally, I put our 2020 Ford F-250 7.3-liter Godzilla V8 truck against the Silverado 1500 RST. The 7.3L V8 is rated at 430 hp and 475 lb-ft of torque.
Here are all the 0-60 MPH times.
- 3.0L V6 Rebel: 9.80 sec
- 5.3L V8 Trail Boss: 9.38 sec
- 3.0L I6 AT4 Diesel: 8.99 sec
- 7.3L V8 F-250 FX4: 8.84 sec
- 6.2L V8 RST: 7.06 sec
Yikes, the 2020 Silverado 1500 RST double-cab 4×4 with the 6.2L gas V8, and its 7.06 sec 0-60 MPH result is indeed the quickest GM half-ton we have tested in Colorado.