First Generation Firebird-L Mailing List ......................................................................... The 048297 is the Engine Unit Number (EUN) or sometimes called Motor Unit Number (MUN).
The XB can be a few different engines depending on year. Find the date code or the block casting number. Here is a link to my Engine Code Search page: http://www.wallaceracing.com/enginesearch4.htm Here is a link on the Engine Unit Number input form: http://www.wallaceracing.com/form.php And to see what the EUN's that I have collected so far: http://www.wallaceracing.com/eunsearch.htm John Wallace Pontiac Power Rules !!! www.wallaceracing.com Subject: [FGF] date code questions First Generation Firebird-L Mailing List .......................................................................... I have a couple of question on date codes I was hoping some of you wise folks can help me with: I have a 1969 350 2bbl auto with AC car and have had it 20 years and am the 2nd owner 1) I'm not sure if my current carb is the "original" and was trying to figure out the cast markings. This is a 2GV and the markings are on the passenger side. 7029062 (which is the right carb), and below that 297 JO82. I could not make any sense of this last number. 2) My alternator which I think is original (dont ever remember changing it until just recently) looks like it may be stamped a 1968 model - does this mean it had been swapped at some point or could it have been old inventory laying around a bin? It is stamped 1100700 55A then below that 8L16 12VNEG 3) Lastly I was curious how to decipher the cylinder stamping 048297 XB. I know the XB is the engine code, but how to interpret the other number - does it mean it the head was cast on the 48th day of 1969? (Which would make sense since the car was ordered in January and delivered in February). but what is the 7 code for then? thanks! hersh ------------------------------------------------------------------------ Submissions to Firebird-L: <[email protected]> Unsubscribe from Firebird-L: <[EMAIL PROTECTED]> Help: <http://FirstGenFirebird.org/firebird/Firebird-L.html> Classifieds: <http://FirstGenFirebird.org/ubb/> Owner Pictures: <http://FirstGenFirebird.org/show/> Donations: <http://FirstGenFirebird.org/store/cart.mv?999999> FGF Merchandise: <http://FirstGenFirebird.org/store>
