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#1 |
Senior Member
![]() Join Date: Feb 2003
Location: Gold Canyon Arizona
Posts: 4,355
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how to decode carb dates?
is this the correct way to decode a quadrajet carb. the date is 2671.
im guessing it was built on the 261st day of 1971? and starting jan 1st 1971 that would put it around late august early sept of 71? is this correct? thx everyone, dave
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1971 K5 CST Blazer 1951 -3100 5 window short bed 4sp 1965 Chevelle Malibu 283 (sadly sold) 1968 Camaro 327 1968 Honda mini-trail z50a #377 1966 uh 1-D Huey |
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#2 |
Senior Member
![]() Join Date: Oct 2009
Location: Godley, TX
Posts: 17,962
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Re: how to decode carb dates?
it's Julian date 267 (vice 261) of 71 (so, 24 Sep 1971)
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#3 |
72 GMC
Join Date: Feb 2008
Location: Wells, Maine
Posts: 534
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how to decode carb dates?
heres more info
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#4 |
Senior Member
![]() Join Date: Feb 2003
Location: Gold Canyon Arizona
Posts: 4,355
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Re: how to decode carb dates?
so my 7042218 ..2671.... is correct for my truck? or is the date too early?
build date 2/15/1972 402 v8 thanx for the replies!
__________________
1971 K5 CST Blazer 1951 -3100 5 window short bed 4sp 1965 Chevelle Malibu 283 (sadly sold) 1968 Camaro 327 1968 Honda mini-trail z50a #377 1966 uh 1-D Huey |
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#5 |
Registered User
![]() Join Date: Nov 2006
Location: Virginia's Eastern Shore
Posts: 91
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Re: how to decode carb dates?
That number codes for a '72 402 Series 10 Auto Trans
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#6 |
Senior Member
![]() Join Date: Oct 2009
Location: Godley, TX
Posts: 17,962
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Re: how to decode carb dates?
interesting yote - but pretty sure that's the original carb. ken had that thing for a good while, and when I looked at it, the whole thing appeared pretty untouched. Anyhoo... A late 71 carb is certainly still correct for a how the part number decodes. The Julian date is just the date the thing was mfgr'ed (the carb) - which needs to precede the build date of the truck by a good bit - 1/2 year not uncommon. Keep in mind that the factory was building 72's by Aug 71 if the were to be on the showroom floor by Oct 71 - so the motors were being put together in advance of that - so that is why you have a Julian date Sep 71 carb that is also coded for a 72 auto trans carb. I do not think the part number differentiates it's for a 402 as mentioned above - but it is the correct, original carb - so REBUILD don't resell!! Truck's looking great, still wish I'd bought it!
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#7 |
Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,503
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Re: how to decode carb dates?
From the overhaul manual
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Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban |
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