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Carb dating

S

sportsbone

Guest
I have a 66 427/425 corvette convertible VIN 194676S124---. Would a 3247 Holly dated 662 be correct for this vehicle and if not what dates would be?
 

Tom Bryant

Well-known member
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Nov 9, 2000
Messages
7,195
Location
Edgerton, Ohio, United States
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1959 black 270hp (9/2/69) 1981 Beige L81(10/20/80)
carb date

With the carb date going in year/month/date it would be a June 2, 1966 carb and your car, as close as I can tell from only the first 3 digits of the sequence number, is a mid to 3rd week of June 1966 car. I'd say that the carb date is perfect.

Tom
 
C

C V Man

Guest
I'm sorry, I responded to the wrong post...

...I thought it said Carbon Dating
;)




C V Man
 

Tom Bryant

Well-known member
Administrator
Joined
Nov 9, 2000
Messages
7,195
Location
Edgerton, Ohio, United States
Corvette
1959 black 270hp (9/2/69) 1981 Beige L81(10/20/80)
Carbon dating

We're not quite that old yet. :L

Tom
 

sloepok

Member
Joined
Jan 31, 2001
Messages
13
Location
Southern Ontario
I apologize for the late and dissenting post.

The 662 dated 3247 you ask about which I think was at auction on eBay decodes year, month, week. Therefore this carb was built in the second week of June 1966.

Your car being in the 24,000 serial range was most likely built sometime between Monday the 13th of June and Friday the 24th.

It has been my observation that most parts on unmolested cars are dated very proximate to the build of the assembly they may be part of or the build of the car. A. O. Smith built cars are one exception in some areas, sometimes. Holley carburetors are another.

Carbs were bolted to the engines on the St Louis assembly line not on the engine assembly line at Flint or Tonawanda. Generally Holleys pre date the assembly of the car by about two months. No doubt there are exceptions. This two month gap is not commonly found with most other parts.

Onus is always on the owner with an exception to support their case. Without specific reason to go with an exception it is more reasonable to go with that which is more commonly found.

Judging aside, if I was enjoying perusing your car and spotted the “tight” dates between carb build and car build, my eyebrow would likely raise of it’s own accord.

Dan
 
Joined
Jan 1, 2002
Messages
7,246
Location
Washington, Michigan
Corvette
'67 Marina Blue Convertible
Not all of us see the same cars, but after many years of NCRS Judging, I don't find the gap between these dates (2 weeks or so) unusual. I've seen many Holleys, Bowtie cars included, that were within a month of car production date. For NCRS judging, these dates would not be an issue; I can't speak for other judging organizations, however.
 

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