Author Topic: Rochester 4bbl numbers  (Read 218 times)

opelitis1

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Rochester 4bbl numbers
« on: July 31, 2020, 10:33:18 PM »
7029202  vs  29202 carburetor numbers.     Why the missing numerics ( 70 ) on the second carb??
Thanks gentlemen.
Ted 

z28z11

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Re: Rochester 4bbl numbers
« Reply #1 on: August 01, 2020, 07:19:02 PM »
Look on the side of the carb and see if it's cast with a "Rochester by Carter" insignia - I've seen the licensed Rochester Products Quadrajets built by Carter carry a 5 digit stamping before. I'll see if I can dig up an example in the (garage) pile to post - I know there's one there somewhere.

Regards,
Steve

1968 Z28 M21/U17 BRG/W
1969 Z28 X77/M20/VE3 LeMans/W
1969 L78 X66/N66 Cortez/BVT
1969 Z11 L48/M35/C60/C06  1949 3100 5wd 235/6

lakeholme

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Re: Rochester 4bbl numbers
« Reply #2 on: August 01, 2020, 11:28:03 PM »
"Not all Rochester carburetors have the "standard" seven-digit identification code. Although uncommon, original carburetors have been observed with the first two numbers ("70") omitted."
From Ed's CRG  carb report
Phillip, HNR-AACA, Senior Master, Team Captain
Spring Southeastern Nationals chair, April 10, 2021 (I hope...)

opelitis1

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Re: Rochester 4bbl numbers
« Reply #3 on: August 02, 2020, 11:42:47 AM »
Good morning gentlemen!!
I have a few of these 5 numbered carbs.  Why were some of them 5 numbers and the rest  the usual seven number 4 bbl carbs?  Are the 5 numbered units
more valuable or are they all of equal value to the 7 numbered carbs?
From what I have here, it is the 1967 to 1969 Rochester 4 barrel units. Nothing after '69 as far as I can see.
Thanks in advance!
Ted

opelitis1

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Re: Rochester 4bbl numbers
« Reply #4 on: August 02, 2020, 07:23:05 PM »
Looks like Oldsmobile in the late 60s - specifically 69' also had 5 numbered Rochester 4 bbl carbs during the 1st quarter of 1969.  Wonder why they had to step up production and bring in the Carter corporation who normally produced carbies for Chryco ?  Maybe because of the ongoing VietNam war ???
Ted

 

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