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Oldblue68chevy · 09-21-2015, 01:21 PM

I believe if you look at the tab for the head gasket the tab will be marked 4.8. if its blank it is a 5.3.

09-21-2015, 01:21 PM	#22
Oldblue68chevy Registered User Join Date: May 2014 Location: Freedom Pa Posts: 139	Re: Does anybody know where the partial vin is on a 2006 4.8/5.3 motor I believe if you look at the tab for the head gasket the tab will be marked 4.8. if its blank it is a 5.3.