Rochester Quadrajet carb
February 7th, 2016, 04:41 PM
#4
Old(s) Fart
Join Date: Mar 2007
Location: Northern VA
Posts: 47,311
February 8th, 2016, 07:49 AM
#5
Gary
Join Date: Feb 2014
Location: Gillespie County Texas
Posts: 2,076
That is a strange part number.
I recall that up to an including 1974, the part numbers started with a 7 and the third digit represented the year (e.g. a 704xxxx carb would be for a 1974 car).
In 1975 they added a 1 to the beginning of the part number and the fourth digit represented the year (e.g. a 1705xxxx carb would be for a 1975 car).
I recall that up to an including 1974, the part numbers started with a 7 and the third digit represented the year (e.g. a 704xxxx carb would be for a 1974 car).
In 1975 they added a 1 to the beginning of the part number and the fourth digit represented the year (e.g. a 1705xxxx carb would be for a 1975 car).
February 8th, 2016, 08:03 AM
#6
Old(s) Fart
Join Date: Mar 2007
Location: Northern VA
Posts: 47,311
That is a strange part number.
I recall that up to an including 1974, the part numbers started with a 7 and the third digit represented the year (e.g. a 704xxxx carb would be for a 1974 car).
In 1975 they added a 1 to the beginning of the part number and the fourth digit represented the year (e.g. a 1705xxxx carb would be for a 1975 car).
I recall that up to an including 1974, the part numbers started with a 7 and the third digit represented the year (e.g. a 704xxxx carb would be for a 1974 car).
In 1975 they added a 1 to the beginning of the part number and the fourth digit represented the year (e.g. a 1705xxxx carb would be for a 1975 car).
A 1972 Oldsmobile carb would have a number starting 7042xxx. 1968 would be 7028xxx. Etc.
February 8th, 2016, 09:35 AM
#8
Old(s) Fart
Join Date: Mar 2007
Location: Northern VA
Posts: 47,311
This does beg the question, what happened to decade "3"?
February 9th, 2016, 09:51 AM
#9
Gary
Join Date: Feb 2014
Location: Gillespie County Texas
Posts: 2,076
You are correct Joe, I got my digits mixed up. I didn't add that the number system changed every 10 years so that they could use the same year digits over again (1966 to 1975 had the same system, then they added the 1 in front and started over).
February 9th, 2016, 09:52 AM
#10
Registered User
Join Date: Dec 2011
Posts: 7,286
I saw a "date code" the other day of like L15 for December 2015. Not "1215"... WTH is this fascination manufacturers have with "encoding" the date. We already have numbers for dates, just _use them_. Wanna date a 1968 carb with two digits? Use "68". See how easy that is?? This ain't top secret spy stuff here. Put the damn date right on there in regular numbers. Crikey...
As for what happened to the "3" decade... it went with the "C" big block...
As for what happened to the "3" decade... it went with the "C" big block...
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