What Engine Year - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Chris50 · 11-30-2019, 07:37 PM

Hope all is doing well. To thank everyone for this site, as I have used it for years as a valuable resource.
I have spent many hours researching on this forum and others trying to get the year of the LS engine I've recently purchased. I know the full vehicle VIN is in the PCM but haven't sent it out to get it flashed, but I'd like to order gasket kit and other parts. Based on my research, I believe it's between a 99 and 03 (truck intake, red/blue connectors, engine stamp 12551358, 5.3L etc.). On the flat tab to the rear of the engine, I have located the etched derivative vin, serial number or whatever it's called. The etched digits are CYG163213. Can these digits be used to determine exact year?

11-30-2019, 07:37 PM	#1
Chris50 Registered User Join Date: Dec 2012 Location: Western Kentucky Posts: 8	What Engine Year Hope all is doing well. To thank everyone for this site, as I have used it for years as a valuable resource. I have spent many hours researching on this forum and others trying to get the year of the LS engine I've recently purchased. I know the full vehicle VIN is in the PCM but haven't sent it out to get it flashed, but I'd like to order gasket kit and other parts. Based on my research, I believe it's between a 99 and 03 (truck intake, red/blue connectors, engine stamp 12551358, 5.3L etc.). On the flat tab to the rear of the engine, I have located the etched derivative vin, serial number or whatever it's called. The etched digits are CYG163213. Can these digits be used to determine exact year?



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