While you won't find a lot of V6 engines in the history of GMC trucks, there are a few standouts. Here are three of the most powerful GMC V6s.

A 1960 magazine advertisement for the GMC V6 and V12 gasoline and diesel truck engines, touting their cost savings.

Here are the towing figures for the 2025 GMC Savana in all its wheelbase lengths and engine configurations, including GM recommendations for safe towing.

GMC's huge Twin Six V12 gas engine was made to take on its diesel counterparts, powering fire trucks and farm machines, but it didn't stay on the market long.

The GMC Terrain crossover gets an upscale Denali trim level and a larger, more powerful V6 engine for the 2013 model year, General Motors said on Wednesday. The 2013 Terrain goes on sale this fall.

The naturally aspirated 6.6L V8 L8T gasoline engine will no longer be available to order on the Cargo configuration of the 2024 GMC Savana per new information.

The Detroit-based automaker Wednesday said the 2014 Chevrolet Silverado and GMC Sierra with the all-new 4.3-liter EcoTec3 V6 engine are estimated by the U.S. Environmental Protection Agency to ...

Equipped with a new 328-hp 2.5-liter engine, the 2024 GMC Acadia is more powerful than the previous version. Image: Kristin Shaw/Popular Science ...

Syclone A Comin’: GMC’s Jammin’ New 13-Second, AWD, Turbo-Charged V6 S-15 Pickup Originally published in the October 1990 issue of Hot Rod magazine ...

A look at a true heavy-metal engine, the 702ci Thunder V12 GMC. Check it out at carcraft.com or the December 2012 issue of Car Craft Magazine.

The big-block V6 was made from 1960 to 1974 for GMC's 6500-series commercial pickup trucks, and it is still one of the biggest V6 engines ever produced.