GM Unveils 2027 Pickup Engine Lineup Focusing on V-8s, Diesel, and Turbo Four

GM revealed the 2027 powertrain lineup for the Chevrolet Silverado 1500 and GMC Sierra 1500, featuring two all-new V-8s, a carryover inline-six diesel, and an upgraded turbocharged four-cylinder. It marks GM’s sixth-generation small-block V-8, developed since 2018 to keep the trucks competitive as Ford and Ram refresh their lineups. Trucks remain GM’s profit cornerstone, with V-8 and diesel options accounting for sizable shares of Silverado and Sierra sales, while regulators continue a separate open investigation into the current 6.2-liter V-8.