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post #1 of 8 (permalink) Old Sep 27th, 14, 10:51 AM Thread Starter
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holley carb

i'm trying to date a holley,are the 4 numbers under the list the date code?mine reads-4432-thanks any help
bryan dfm
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post #2 of 8 (permalink) Old Sep 27th, 14, 12:16 PM
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Jon
 
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Re: holley carb

Better call Holley. That date code doesn't follow any Holley coding scheme I've ever heard of.

Jon N

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post #3 of 8 (permalink) Old Sep 27th, 14, 03:47 PM Thread Starter
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Re: holley carb

thanks,jon. went over and looked again,how about-3342-the primary metering block is stamped-10569-secondary is-6497- under that is 47771-
thanks for any help!
bryan.
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post #4 of 8 (permalink) Old Sep 27th, 14, 05:02 PM
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Re: holley carb

Quote:
Originally Posted by bryan dfm View Post
thanks,jon. went over and looked again,how about-3342-the primary metering block is stamped-10569-secondary is-6497- under that is 47771-
thanks for any help!
bryan.
Your 4777-1 is a universal 650 CFM double pumper. The rebuild kit number is 37-485.

Holley has plenty of info here : https://www.holley.com/support/

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post #5 of 8 (permalink) Old Sep 27th, 14, 05:49 PM
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Jon
 
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Re: holley carb

3342 means the carb was built in a year ending in 3. 73, 83, 93, 03, 13. The following 342 means it was built on the 342nd day of the year. I can't date it any closer than that.

Jon N

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post #6 of 8 (permalink) Old Sep 27th, 14, 07:58 PM Thread Starter
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Re: holley carb

Jon N,thanks for your help.it's off a P.O.S. ----that would be a-- Found On Road Dead.
comes up as a 68 shelby.the more coin i can get,the more i can put in a real car-my 67 SS i have had sense high school.
thanks again!!BRYAN
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post #7 of 8 (permalink) Old Oct 4th, 14, 11:28 AM
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Re: holley carb

Quote:
Originally Posted by dyno jonn View Post
3342 means the carb was built in a year ending in 3. 73, 83, 93, 03, 13. The following 342 means it was built on the 342nd day of the year. I can't date it any closer than that.
Actually, it's the other way around - carb was built on the 334th day of a year ending in 2 (72, 82, etc.). Through 1971, Holley date codes were three digits (year, month, week), and they changed to four digits in 1972 (Julian day, year).


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post #8 of 8 (permalink) Old Oct 4th, 14, 02:54 PM
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Jon
 
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Re: holley carb

Oopsie.

Moral, never drink and post.

Jon N

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