Lot of 20 boxes of new old stock gmc engine valves. Were on a shelf for many years in storage. Some boxes have just one valve but most appear to have both. Valves are marked with the gmc logo on either the bottom or the stem. Different model numbers on the boxes as seen in the photos, and most if not all appear to match the numbers on the boxes. Boxes are dirty and some are falling apart. Unsure what years and models they fit new. Sold as is, please see photos 

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Please check application before bidding. Sold as is, please see