The 2014 Chevrolet Silverado is all-new, and it's stronger, more fuel efficient, and more technologically advanced than ever. For people who buy pickup trucks, powertrain options are a big deal, and the Silverado has three new engine options. A completely new 4.3-liter V-6 is the base engine, while revised 5.3-liter and 6.2-liter V-8s are also...