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VIN# and Codes (1970 GS 350)


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Hey folks,<P>I have a 1970 Buick GS 350 and I have been trying to figure out the codes on this car. Here is the VIN# and the serial number I found stamped on the FRONT of the block.<P>VIN# 434370H133616<BR>Serial# on Block front: 40H133616<BR>Numbers on Block Deck: "P" and 103<P>I realize that the 43437 means that it is a GS and the 0 means it's a 70 and the H means it was built in Flint, but what do the other numbers mean? Also, I am assuming that this is a numbers matching vehicle. Why would the serial # be stamped on the front of the block on a 1970 model? I thought they only did that in 1972.<P>Any info would help!<P>Thanks!<BR>Steve<BR>

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Patience is a virtue...<P>Since you know that 43437 is the model number, the 0 is the year, and H is plant code, the remaining digits are the serial number of sorts. It's the production number for your car.<P>The numbers on the block, if you'll notice are identical to the ending of the VIN, outside of the 40, you have H and the serial number. I don't know what the 40 means but the others mean that it's a numbers matching engine.<P>Deck numbers I have no clue about.<P>Be patient, it's a 3 day (4 day for some) weekend, most people are not at home.<P>Regards,<P>-S<BR>

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Hi,<BR>The 40 is broken down easily. "4" means Buick <BR>and "0" ,means 1970. It is only done this way on the engine block and should also be on the trans somewhere. I think in 70 they may have put it on a flat area by the shift linkage.<BR>If not, it may be on the back of the case by the tail housing on the passenger side.<BR>Hope this helps,<BR>Mark

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I also have a 1970 skylark with a gs 350 motor i checked the block between the front to plugs on the drivers side and with a little scraping i found the code of S P which matches the code in the book for a gs 350 10.25/1 compression motor.<P>not sure what the 103 is

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