General Motors, the owner of GMC, has made all sorts of impressive powertrains over the years. Muscle cars with V8s are sprinkled all throughout its history, as are powerful pickup trucks, sporty ...

The most powerful six-cylinder production engine ever built by General Motors arrives in July in the 2008 Cadillac STS. The aluminum 3.6-liter V6 gets direct fuel injection, which yields 302 hp, 272 ...

General Motors Australian unit Holden has revealed details of the new global V6 engines it will use in upcoming new generations of its locally-built vehicles. The new V6, named ‘Alloytec’ for ...