General Motors’ all-new 3.9L V6 has been honored with a Breakthrough Technology award by Popular Mechanics for its innovative use of variable valve timing in an overhead valve engine. For ages GM has ...

From dry-lake hot rods to modern track-day missiles, a handful of American V8s have earned near-religious status among gearheads. These engines did more than make power, they reshaped racing, ...

General Motors has spent decades refining overhead-valve V8s while much of the industry pivoted to dual overhead cam designs, turbocharging, and downsized blocks. I set out to understand why Chevrolet ...