I'm Confused Regarding the "VIN" on this GS

Discussion in 'The "Paper Trail"' started by Craig Balzer, Jun 27, 2019.

  1. Craig Balzer

    Craig Balzer Well-Known Member

    I am considering a 71 GS Stage 1 Convertible but am confused on the number on the car.

    434367FL1 000174 is on the data plate riveted to the cowl.
    4343671H 000576 is the VIN (in the recess on the dash top oriented so it can be read through the windshield).

    I know how to decode the first 8-9 digits which confirms the car is a 71, a GS, and a convertible that was built in Flint.
    BUT -- -- shouldn't the last six digits match when comparing the two number??
    Any help out there?

  2. Brad Conley

    Brad Conley Super Moderator Staff Member

    Craig, the data plate is not the VIN and has no relationship with the VIN. It is the Fisher Body number used by Fisher for their internal purposes.
  3. Craig Balzer

    Craig Balzer Well-Known Member


    Thanks for the quick reply. I knew there had to be a logical explanation.


    Brad -- a follow-on question (since I know you have an unparalleled knowledge of GS's).

    This car is touted as being: ". . . reportedly one of 25 Stage 1 “zone demonstrators” built on August 5, 1970, all of which were finished in Cortez Gold over Pearl White vinyl and distributed to GM executives before going to dealers and the general public."
    Was there such a thing and is there a way to confirm this is one of the 25? . . . the VIN is pretty low.
  4. Brad Conley

    Brad Conley Super Moderator Staff Member

    It could be, but I have no idea how you can prove or disprove. Very low VIN and body number, I will say. Many other folks on here with much deeper knowledge than I on the stepchildren (68-69's). What's the rest of the body tag say? That's a start.
  5. Craig Balzer

    Craig Balzer Well-Known Member

    The Body tag and photos:

    1971_buick_gs_Body Tag.jpg 1971_buick_gs_Body Tag.jpg 1971_buick_gs_Side View.jpg

    Attached Files:

  6. Bad Boattail

    Bad Boattail Guest

    This is easier to read:


    53 is indeed Cortez Gold, the A is the top colour.
    TR 155 is for Pearl White interior on the GS convertible

    08E = Built in de 5th week of August 1970.
    (08 is August, A = week 1, B = week 2 and so on)


    From a video on YouTube:

    One of just 11 registry-listed 1971 GS Stage 1 ‘Zone Demonstrator’ convertibles, this Buick was a rare classic straight from the factory.

    Zone Demo GS cars were unique in two ways.
    For starters, they all sported Buick’s new-for-1971 Cortez Gold paint between White convertible tops and snazzy Pearl interiors.

    And secondly, they were pretty much fully-optioned rigs.
    Delivered to the Buick Zone Office in Jacksonville, Florida in August of 1970, this GS is 1 of roughly 25 Zone Demo convertibles produced for the 1971 model year.

    Last edited: Jun 28, 2019
  7. Bad Boattail

    Bad Boattail Guest

    Here's a post on this board about the Zone Demonstrator cars:

    The 71's were all optioned the same with:

    Stage 1
    TH 400
    3.42 posi
    Power disc brakes
    Power Steering
    AM radio with rear speaker
    N25 exhaust
    G60 15's with chrome 15x7 rally wheels
    F41 rally ride suspension
    Air conditioning
    Custom front shoulder seat belts
    Speed alert
    Tinted glass
    Front and rear bumper guards
    Sport mirrors
    Power bench seat
    Power windows
    Power locks
    Cruise control
    Tilt steering
    Convenience group lighting
    Tach and gauges
    Rally steering wheel
    Fold down armrest bench seat

    Click here to go to that thread [​IMG]
  8. flynbuick

    flynbuick Super Moderator Staff Member

  9. cjp69

    cjp69 Platinum Level Contributor

    Craig, check the block stamping real close on that car. Several members have mentioned that it appears like it may be a restamp.

    Also, the dealer bought it last month at Indy for $55k plus commission, apparently is looking to get $90k for it.

    Attached Files:

  10. Craig Balzer

    Craig Balzer Well-Known Member

    Thanx everyone -- especially for the link to the details on the Zone Demonstrators.

    Re flynbuick's comment (Someone added the GSX stripe scheme on the car later in life) it is my understanding that the rear wing was never added to the GS conv. The ad does state the GSX stripes were added by a PO.
  11. Craig Balzer

    Craig Balzer Well-Known Member


    The bidding - with 3 days remaining -- is only at $20K.
    Not sure he's gonna reach $90K much less his $55K+ purchase price unless things really start to pick up for him.

  12. cjp69

    cjp69 Platinum Level Contributor

    Agreed, I would be surprised if it gets past his purchase price, much less meets his reserve
  13. dynaflow

    dynaflow shiftless...

    ...stock rear spoiler doesn't fit convertibles due to different slope of top rear quarters...

  14. Craig Balzer

    Craig Balzer Well-Known Member

    Just to close out this thread, the auction really took off in the last hour or so and peaked at $49,000.
    No SALE.
  15. cjp69

    cjp69 Platinum Level Contributor

  16. Bad Boattail

    Bad Boattail Guest

    Last week I also saw the car for sale on this British website:

    Click here [​IMG]
  17. telriv

    telriv Well-Known Member

    In the drive ad it states a 700R4/4spd. trans. In subsequent ads states it has the ORIGINAL TH400 matching numbers trans.
  18. Stage 2 iron

    Stage 2 iron Nice Chevelle LOL

    Last couple 71 GS Stage one convertibles been topping out at 70 K this is a nice car but you can deduct 5 to 10 grand for the GSX stripes..
    Last edited: Jul 11, 2019
    69 GS 400 likes this.

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