New V8 Engines And Sharper Design For The 2027 GMC Sierra 1500

The 2027 GMC Sierra 1500 introduces an overhauled exterior look paired with a modernized cabin and an expanded engine portfolio. Buyers can choose between an upgraded 350-hp 2.7-liter TurboMax four-cylinder, a 305-hp 3.0-liter Duramax diesel, and two brand-new V8 options displacing 5.7 and 6.6 liters. The flagship 6.6-liter V8 delivers 481 horsepower and 501 lb-ft of torque, while the 5.7-liter V8 can tow up to 13,500 pounds.