GM Unveils Sixth-Gen V-8 Power for 2027 Trucks and Corvette
GM revealed the sixth-generation small-block V-8s for its 2027 Silverado and Sierra lineup and Corvette, including the 5.7L L76 and 6.6L L78 delivering up to 481 hp with improved efficiency, plus a Duramax 3.0L Turbo-Diesel, all paired to a 10-speed transmission. The company plans additional production at Tonawanda, NY and St. Catharines, Canada with substantial investments, highlighting a new engine architecture and data-driven quality checks, while GM navigates ongoing federal engine investigations and recalls in the broader industry context.