Author Topic: 5 numbered Rochester carburetors  (Read 752 times)

opelitis1

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5 numbered Rochester carburetors
« on: March 01, 2018, 02:07:07 PM »
Have  29202  +  29251  Rochester 1969  carburetors ..  Notice the "70" is missing from the units.    Anyone explain what engines / car models
these units are from, and why the 5 numerics instead of the common "70" numbered carbs. The Julian dates are;   098 9   and  114 9  respectively?
Thanks!
Ted   

Kelley W King

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Re: 5 numbered Rochester carburetors
« Reply #1 on: March 01, 2018, 04:01:13 PM »
One of Hemmings mags had a really extensive Qjet id article a couple months ago.. You might google it or I could look tonight. It explained all the numbers in detail.
69 Z28 RS Scuncio Hi Performance
69 SS L78
67 SS Chevelle
64 Corvette
66 GTO Tiger Gold
77 Trans Am Special Edition

OG69Z

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Re: 5 numbered Rochester carburetors
« Reply #2 on: March 01, 2018, 07:15:21 PM »
Not sure about those numbers missing the 70,but assuming they should be there:

29202: 300HP 350 auto trans Chevy

29251:  69 Olds 400/455 base engines

Hope this helps!

z28z11

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Re: 5 numbered Rochester carburetors
« Reply #3 on: March 02, 2018, 01:03:48 PM »
Out of curiousity - are any of the carbs marked "Rochester by Carter" in the logo ? I have a Rochester with a 5 digit number that was evidently made by Carter, either as a sourced part or a marketing/licensing agreement. Worth a look -

Another explantion or possibility might be a service part, covering multiple applications. 

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

z28z11

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Re: 5 numbered Rochester carburetors
« Reply #4 on: March 04, 2018, 05:37:18 PM »
If you have Chevrolet by the Numbers 1965-69, there's a good explanation about the missing "70" in the Rochester carb section, also date coding and marking of the carbs. Very helpful -

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

opelitis1

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Re: 5 numbered Rochester carburetors
« Reply #5 on: March 21, 2018, 01:35:10 PM »
Thanks for the replies!!   I'll check further on the 2 carbs I have.
Ted