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Carb ID strange!

Discussion in 'The Venerable Q-Jet' started by waijo355, Oct 25, 2008.

  1. waijo355

    waijo355 Well-Known Member

    hello, i have the following carb number off my 73 BBB 455

    7041305 (11 15 79) 0354

    After doin a internet search, i found that the 0354 means its a 1971 Chev Manual, but then this link says its a for a 67 Buick????

    http://www.classicbuicks.com/fuel_intake.htm

    can u guys help me out pleae???
     
    waijo355, Oct 25, 2008
    #1
  2. CJay

    CJay Supercar owner Staff Member

    Looks like your missing a digit on the casting number. 7041**** would mean its a 1971 Buick carb. The four digits after the casting number is the date code. Im a little rusty on date codes but I think 0354 is the 35th day of 1974. If im right, that would mean its a service replacement carb made in 1974
     
    CJay, Oct 25, 2008
    #2
  3. BuickBuddy

    BuickBuddy Registered V8 Offender GK

    6th digit denotes make.. His says 0 that's Chevy.

    0,1,2- Chevy
    3-Caddy
    4-Buick
    5-Olds
    6,7-Pontiac
     
    BuickBuddy, Oct 26, 2008
    #3
  4. CJay

    CJay Supercar owner Staff Member

    He seems to be missing a digit on his carb number though. They're usually 7 digits not 6. Followed by the plant code then the date code. Im not sure what the numbers in parenthesis means

    For example- 7040246 LK 0150
     
    CJay, Oct 26, 2008
    #4
  5. wkillgs

    wkillgs Gold Level Contributor

    Yup...service replacement carb. They don't follow the usual numbering convention, since they were made at a later date and have some modifications from the originals.....so they don't use the original pn.
    I just bought a 7041305 on eBay. Looks like it has nailhead linkage, but a later style vacuum dampener for the secondaries. 1967 would be a good guess.
    Anyone have a AC-Delco carb book???
     
    wkillgs, Oct 26, 2008
    #5
  6. BuickBuddy

    BuickBuddy Registered V8 Offender GK

    It is 7 digits.

    70 is Rochester

    41 is 1971

    3 is what puzzles me. All of GM used either 2-49states 5-California Only


    0 is Chevy

    5 is manual

    I'm wondering if it's a 205 carb.. That's off a 454.
     
    BuickBuddy, Oct 26, 2008
    #6
  7. CJay

    CJay Supercar owner Staff Member

    Your right. I cant count:Dou: . Too many mixed drinks at the Halloween party last night. im nursing a slight hangover .

    Looks like Walt nailed it though. :beers2:
     
    CJay, Oct 26, 2008
    #7
  8. BuickBuddy

    BuickBuddy Registered V8 Offender GK

    If anyone is missing digits it's me. We went to that GrandPrix New York last night. In the second race someone (JohnSR):rolleyes: hammered me into the wall. The wheel spun in my hand and I think I ripped the pinky muscle in my bad hand. :ball: Iced it all night. :laugh:
     
    BuickBuddy, Oct 26, 2008
    #8
  9. Nailhead

    Nailhead Gold Level Contributor

    1971 Delco catalog indicates 7041305 is the service carb for 1967 400 or 430 with AT (California only).
    John
    :beers2:
     
    Nailhead, Oct 26, 2008
    #9
  10. wkillgs

    wkillgs Gold Level Contributor

    wkillgs, Oct 26, 2008
    #10
  11. waijo355

    waijo355 Well-Known Member

    OK guys,

    so when i advertise to sell it should i say that it is a

    "replacement service carb" dated 11 15 79, 7041305 (11 15 79) 0354

    for a Buick 455, and or a 1971 Chev Manual.




    Does that seem correct????

    Cheers
     
    waijo355, Oct 27, 2008
    #11
  12. wkillgs

    wkillgs Gold Level Contributor


    I would use Johns description EXACTLY. You can't be more accurate than that.....he Nailed it!:laugh:

    BTW, this 67 carb does have the same linkage and baseplate as the 66 Nailhead carb, so it fits nicely on a Nail too! However, the 67 carb doesn't use a hot-air choke like the '66.
     
    wkillgs, Oct 28, 2008
    #12
  13. waijo355

    waijo355 Well-Known Member


    Cheers Guys!
     
    waijo355, Oct 28, 2008
    #13

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