Chevrolet's Vortec series of engines is hugely popular. Designed with trucks in mind, Vortec engines prioritize low-end torque and durability over high compression ratios and high horsepower, unlike ...
When GM launched new-generation trucks for the model year 2020, the Allison automatic was gone. The trucks still got the badge, but it was a new 10-speed automatic jointly developed by Ford and GM. So ...