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- - Carb Help!!` (https://67-72chevytrucks.com/vboard/showthread.php?t=771641)

AASmedic

09-18-2018 11:56 PM

Carb Help!!`

Does anyone know the correct carb number for a 72 K5 with a 350 and automatic tranny? (TH-350) Nearest I can tell it should be a 70422--.

Thanks,
Kevin

4x41971SWB

09-19-2018 12:51 AM

Re: Carb Help!!`

The two carbs I have on 1972 K5`s automatic have 7042210

AASmedic

09-19-2018 01:03 AM

Re: Carb Help!!`

What significance does the last 2 numbers have? I know that even numberd carbs were automatic and odd numbers were manual but not sure of the significance of the sequence. (ie, 04, 06, 08, 10, 12...etc)

4x41971SWB

09-19-2018 01:29 AM

Re: Carb Help!!`

The second to the last number if it is 0, 1, or 2 that means it was for a Chevrolet. The two letters are production code. The next set of four numbers are the production day and year. Mine for example is 3281 which means it was built on the 328nd day of the year 1971.

AASmedic

09-19-2018 03:04 AM

Re: Carb Help!!`

Quote:

Originally Posted by 4x41971SWB (Post 8347412)

Got it. I am familiar with the date codes I just wasn't sure about the specific coding for ones used on a blazer.

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