The 2014 GMC Sierra 1500’s available EcoTec3 5.3L V8 engine offers the best V8 fuel economy in any full-size pickup at an EPA-estimated 16 mpg city and 23 mpg highway (2wd). Rated at 355 HP and 383 lb.-ft. of torque, the EcoTec3 5.3L V8 offers a class-leading max trailering of 11,500 lbs., when ordered with the available Max Trailering Package (double cab, 4x2). Sierra’s all-new EcoTec3 engines are paired with a 6-speed automatic transmission and are based on 50-plus years of proven small-block performance.
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