Introduced in 1970, the Chevy 454 -- affectionately known as the Rat Motor -- was the largest displacement Chevrolet engine to enter the big-block engine showdown of the muscle car era.

The Chevrolet division of General Motors has built some incredible V8 throughout its history, but when it comes to ...

LS engine swaps have been popular since the '90s, but picking the perfect car can be a chore. Here's some classic cars that ...

GM Authority reader Willard asks why the Chevy Colorado uses a four cylinder engine while Nissan Frontier gets a V6. We answer in today's GM Authority Mailbag.

At this year's SEMA Show in November, Chevy Performance is unveiling the latest upgrade to that legacy with the new ZZ6 350-cubic-inch (5.7-liter) crate engine. Offering 405 horsepower and 405 ...

The latest 2025 model year also debuts a new turbodiesel Duramax option, namely the 3.0L I6 LZ0 engine. Now, GM Authority has exclusively learned when the refreshed 2025 Chevy Tahoe and 2025 Chevy ...

The redesigned 2024 GMC Acadia has grown larger in nearly every ... It loses its 3.6-liter V6 engine in favor of a more powerful 2.5-liter turbocharged four-cylinder. An impressive roster of ...

General Motors LLC (GM) is recalling certain model year 2007-2011 Chevrolet Silverado HD 2500/3500 trucks manufactured January 18, 2007, to June 22, 2011, and GMC Sierra HD 2500/3500 trucks ...

Both are mated to a nine-speed automatic. A diesel engine, paired to a six-speed automatic, is also be available. GMC's IntelliLink infotainment system will be offered in 7- and 8-inch forms ...

The GMC Savana is already one of the most basic ... features detracts from the Savana's value proposition. GM offers two engines in the Savana: the standard 4.3-liter V-6 is rated for 276 ...