Sierra 1500 Engine Options: 2.7L vs. 5.3L V8


2.7L TURBO I4 VS THE 5.3L V8

Finding the right way to power your adventures or workday is important. When you don’t have the right fit for your life under the hood, you may not get the most out of your new pickup truck. Thankfully, the GMC Sierra 1500 won’t limit you to one engine option. Whether you prefer the standard 2.7-liter Turbo High-Output I4 or want more muscle provided by the 5.3-liter V8 engine, there’s an option to match every need. Consider the differences below and let us know which one fits your needs best.



Along with an 8-speed automatic transmission, the 2.7L Turbo High-Output delivers 310 horsepower and an impressive 430 lb-ft of torque. This enhanced engine offers over 20 percent more torque than the previous 2.7L Turbo.

Standard on Elevation, SLE and Pro trims.

  • 310 horsepower
  • 430 lb-ft of torque
  • Up to 19 CITY/22 HWY MPG†
  • Max trailering: up to 9,400 lbs†


With 355 horsepower and 383 lb-ft of torque, along with the 10-speed automatic transmission, this engine is ready for hard work or play.

Standard on Denali and SLT. Available on Elevation, SLE and Pro trims.

  • 355 horsepower
  • 383 lb-ft of torque
  • Up to 16 CITY/21 HWY MPG
  • Max trailering: up to 11,200 lbs


2.7-liter Turbo High-Output vs. 5.3-liter V8

Engine Output: The standard 2.7-liter Turbo High-Output engine provides 310 horsepower and 430 pound-feet of torque, plenty of muscle for your drive to work. The 5.3-liter V8 is a muscular option, offering 355 horsepower and 383 pound-feet of torque. While the 2.7-liter engine delivers more pound-feet of torque, the V8 will hit a higher speed with more horsepower.

Fuel Economy: When you’re cruising down the road, considering what kind of gas mileage you get from your full-size pickup truck can make the difference in what model you need. The 2.7-liter Turbo High-Output engine enjoys an EPA-estimated fuel economy of 19/22 mpg. If you choose the 5.3-liter V8, you’ll receive an EPA-estimated 16/21 mpg. When you need better overall performance, especially in the city, the 2.7-liter Turbo engine will work well for you.

Maximum Towing Capacity: Looking to haul supplies or equipment to the worksite? The GMC Sierra 1500’s 2.7-liter engine offers a maximum trailering capacity of up to 9,400 pounds. If you need a beefier towing option, the 5.3-liter V8 tows up to 11,200 pounds.

Key Differences: Both lineups offer plenty of power and capability, but both engines offer unique advantages that may appeal to you. The 2.7-liter Turbo High-Output offers over 20 percent more torque than the previous year’s model and comes standard on Elevation, SLE, and Pro trim levels with an eight-speed automatic transmission. The 5.3-liter V8 features a 10-speed automatic transmission and comes standard on Denali and SLT trims. It can also be had with Elevation, SLE, and Pro trims.

There’s much to explore under the GMC Sierra 1500’s hood. Reach out to the Lee GMC team today to see what kind of power you need for your next full-size pickup truck!