The 2019 Chevrolet Silverado 1500 due at dealerships in the fall has more engine choices than ever before, offering six different power options for the new pickup truck. One of those new engine options is a 2.7-liter turbocharged four-cylinder gas engine. We had a chance to go behind the scenes to get all the details about the new engine and drive a 2019 Silverado equipped with it during a media event in Milford, Mich. The 2.7-liter makes 310 horsepower at 5,600 rpm and 348 pounds-feet of torque from 1,500- 4,000 rpm. That engine is mated to an updated version of GM’s eight-speed automatic transmission. To achieve these numbers, Chevrolet developed a dual-volute turbine. Unlike a twin-scroll turbocharged, a dual-volute system sends exhaust gas into the turbine through two separate inlets, coming off the exhaust manifold. Because the gasses aren’t combined before going into the turbocharger, flow is smoother and boost pressure builds faster. An electronic boost controller keeps everything in check as the 2.7-liter builds up to 22 pounds per square inch of boost. The results are impressive. Chevrolet claims that the 2.7-liter turbo engine reaches 90 percent torque quic...