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 ...

"Our customers' own fears were, coming out of bankruptcy, with the pressures of [Corporate Average Fuel Economy], were that the Corvette would be a shadow of itself," said Corvette chief engineer ...

From dry-lake hot rods to modern track-day missiles, a handful of American V8s have earned near-religious status among ...

We've often wondered what would happen if one of the heavy hitters in racing would take a lower-level, short track race engine and apply all those neat ideas they pick up in the top areas of racing.

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 ...

Both of these Silverado engines feature continuously variable valve timing and Active Fuel Management (AFM), which shuts down cylinders to improve fuel economy when only small amounts of power are ...