The Chevrolet Avalanche engine was launched in 2001 and came with 2 engine choices: the Vortec 5.3L V8 engine and the Vortec 8.1L V8 engine. All though fuel economy is not its strong suit, the Avalanche was an immediate success. Though never as popular as its sisters the Tahoe and the Yukon, the Avalanche has developed a loyal following all its own.
Buyers seem to really go for the unusual body design and powerful Chevy engine that combine style, power and practicality all in one vehicle.
The Vortec Engine is one of the most powerful and popular engines produced by GM and this combined with the unique features of the Avalanche, work place this truck in a category all its own.