The revamped 6.6-liter Duramax V8 engine will go into production in April 2010 and the current Duramax, which doesn't meet emissions requirements that go into effect January 1, 2010, will cease production the day before the new year begins. In the interim, GM will be retooling the factory and won't be producing any of the engines to go in the Chevy Silverado and GMC Sierra.

This has some dealers and outside observers wondering if GM will run out of 2009 Duramax engines before the new ones are built and installed in engine bays. One dealer says GM will take orders for extended cab models with the big diesel, but no longer accepts orders for Duramax regular cabs. Analysts believe that with the car and work truck market showing some recovery, that demand will grow just as GM is trying to play the inventory game.

While the General prepares it's urea-infused powerplants, any engines that GM builds through the end of 2009 can be installed in vehicles even if those vehicles are ordered and built next year. For now, GM says it is padding its stocks of Duramax engines and is confident about being able to meet the need.

[Source: Automotive News - Sub. Req.]

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