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Carter AFB Question

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Old Jun 18, 2008 | 11:23 AM
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Default Carter AFB Question

I can't find my Carburetor reference stuff.

I was thinking about buying a Carter AFB core for my early 62 (january 1962). Can someone help me decode the date of BK1 on the carb. Is it Nov. 61?

Thanks!
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Old Jun 18, 2008 | 12:20 PM
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"K" on a Carter carb is October, 1961.

Last edited by JohnZ; Jun 18, 2008 at 02:50 PM.
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Old Jun 18, 2008 | 12:22 PM
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Originally Posted by JohnZ
"K" on a Carter carb is October, 1971.
No kidding...the seller is representing this as a 62 AFB core. What does the "B" stand for?

Thanks Again
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Old Jun 18, 2008 | 01:34 PM
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Originally Posted by JohnZ
"K" on a Carter carb is October, 1971.
I don't believe Corvettes got Carter AFBs or WCFBs after 1965.

In 1962

250hp auto wcfb 3190s
250hp auto wcfb 3191s
300/340hp manual afb 3269s
300hp auto afb 3310s

Originally Posted by Davo18
No kidding...the seller is representing this as a 62 AFB core. What does the "B" stand for?
The only Carter carbs I have with 3 digit date codes have a center air adjuster between the two idle screws. Does the one you're looking at have the large center air adjuster?

Last edited by magicv8; Jun 18, 2008 at 01:43 PM.
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Old Jun 18, 2008 | 02:51 PM
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Oops! Had '71 on the brain - corrected my original post.
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Old Jun 18, 2008 | 02:57 PM
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Originally Posted by JohnZ
"K" on a Carter carb is October, 1961.
Okay, now you have my curiosity up John (or anyone with the answer). I'll bite - Why is "K" October and not November? Was one letter of the alphabet not used for some reason?



- Pat
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Old Jun 18, 2008 | 04:39 PM
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1. Some items that were dated by using a letter for a month used "I", and some didn't. Therefore, depending on the item, sometimes "J" is September, sometimes October. Sometimes "K" is October, sometimes November. I'm not sure whether carburetors used "I" or not.

2. I read that the "B" in "BK1" probably stands for Revision B.

3. It seems that 3269S and 3310S carburetors were not manufactured and stamped every month. I don't believe you'll find "L" or "M" for carbs made in 1961. I think the "K" ones were the last ones made in 1961. There's lots of "A"s and other months for 1962. Batch processing for low volume items is not unusual.
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Old Jun 18, 2008 | 07:24 PM
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Originally Posted by chris ritchie
1. Some items that were dated by using a letter for a month used "I", and some didn't. Therefore, depending on the item, sometimes "J" is September, sometimes October. Sometimes "K" is October, sometimes November. I'm not sure whether carburetors used "I" or not.

2. I read that the "B" in "BK1" probably stands for Revision B.

3. It seems that 3269S and 3310S carburetors were not manufactured and stamped every month. I don't believe you'll find "L" or "M" for carbs made in 1961. I think the "K" ones were the last ones made in 1961. There's lots of "A"s and other months for 1962. Batch processing for low volume items is not unusual.
Chris, thanks for the clarification on the date codes. I wasn't aware of that. I tried a number of searches, but couldn't find that info.

- Pat
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Old Jun 19, 2008 | 12:54 PM
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Originally Posted by C2Driver
Okay, now you have my curiosity up John (or anyone with the answer). I'll bite - Why is "K" October and not November? Was one letter of the alphabet not used for some reason?



- Pat
Generally, raised GM casting dates used the "I" character, and stamped GM casting dates didn't; Carter carburetor date coding is the same as GM stamped date codes.
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Old Jun 19, 2008 | 03:18 PM
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Originally Posted by JohnZ
Generally, raised GM casting dates used the "I" character, and stamped GM casting dates didn't; Carter carburetor date coding is the same as GM stamped date codes.
Thanks John.

- Pat
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