General Motors announced this morning plans to invest $69 million in their Moraine Ohio joint venture diesel engine plant to produce an updated version of the Duramax 6.6L diesel V-8. The plant is a 60/40 joint venture with Isuzu Motors and began producing the popular diesel for GM trucks in 2001. The engine comes in variants ranging from a 300hp/520lb-ft to the top 365hp/660lb-ft unit used in the heavy duty versions of the Chevy Silverado and GMC Sierra. The 6.6L has 4 valves per cylinder and a common rail injection system. In 2007, GM added a diesel particulate filter to clean up the soot emissions. The 2010 update will add a selective catalyst reduction system that will allow it to meet Tier 2 Bin 5 NOx emissions standards for all fifty states.

[Source: General Motors]

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