September 30, 2005

GM 3.9-litre V6 wins Popular Mechanics award

New York, New York – General Motors’ new 3.9-litre V6 has been recognized for its technology in Popular Mechanics’ first Breakthrough Awards. The awards will be featured in the magazine’s October issue. The engine received the award for the innovative adaptation of variable valve timing, an industry first for overhead-valve engines.

The 3.9-litre is part of an all-new family of advanced overhead-valve, 60-degree V6 engines. The variable valve timing system uses a vane-type camshaft phaser that changes the angular orientation of the camshaft, thereby adjusting the timing of the exhaust and intake valves to optimize performance and economy, and reduce emissions. The engine is currently used in the 2006 Chevrolet Impala, Monte Carlo, Malibu SS, Malibu Maxx SS and Uplander; Pontiac G6 GTP and SV6; Buick Terraza; and Saturn Relay.

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