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I'm pretty sure that the s/n for the 7.3 can be found on the sticker on the passenger valve cover. If that sticker isn't there anymore then it is stamped in the block somewhere but I don't remember where it is.
It is sometimes stuck on the HPO reservoir. But the physical stamp is near the oil filter. I think it is written vertically. It is to the rear of the oil cooler above the filter.
04-15-2010, 10:26 PM
