The Chevrolet Silverado has a mighty 2.7-liter turbo-four that makes General Motors proud and maybe even a little embarrassed. It produces a whole 420 pound-feet of torque—more than Chevy’s 5. ...

With a displacement of 2.7-liters and a big turbo, Chevy's new engine is more powerful, efficient and lighter than the V6 it replaces.

A V6, a turbo four-cylinder, two versions of the 5.3-liter V8, the 6.2-liter V8, and the 3.0-liter Duramax inline-six turbo diesel. Which would you pick?