OneSilverTruck
02-21-2005, 11:25 PM
Just curious if the Duramax in the larger 6500 series trucks are the same as the 2500hd, 3500 etc....
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jeazor 02-22-2005, 07:46 AM To my knowledge they are a 7800 Duramax engine which is a inline 6cyl which is 7.8l or 475ci. Totally different engines for different trucks. James | ||