Author Topic: 1972 Corvette Carburetor  (Read 2819 times)

Offline thumper

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1972 Corvette Carburetor
« on: December 01, 2010, 08:16:42 AM »
Hi everybody!

My friend is working on a 1972 Corvette with a 4 speed manual transmission, 350 SB.

The carburetor # is 704 2902, which I believe is for an automatic transmission.

On the drivers side is an electric solenoid which appears to position the throttle.

What is the difference between applications for manual and automatic transmission carburetors, and can this

704 2902 be corrected to work properly for an automatic transmission?

Thanks for any help, Thumper

Offline 1979SE

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Re: 1972 Corvette Carburetor
« Reply #1 on: February 27, 2015, 08:52:49 AM »
Wow, I have the same question.  My Q-Jet casting ends in an odd number, raising a question about a manual transmission application.  (My car is an automatic.)  What did your friend find out about this?
Joseph

Offline Ethan1

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Re: 1972 Corvette Carburetor
« Reply #2 on: February 27, 2015, 11:53:06 AM »
 This is a common misconception. A lot of Quadrajet stampings end in a odd number, but yet, came with a A/T. And vice-versa for M/T. Why Rochester did this, who knows.
Ethan

1972 Chevelle

(oo______oo)

Offline 1979SE

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Re: 1972 Corvette Carburetor
« Reply #3 on: February 27, 2015, 01:26:15 PM »
This is a common misconception. A lot of Quadrajet stampings end in a odd number, but yet, came with a A/T. And vice-versa for M/T. Why Rochester did this, who knows.

Thanks, I'm seeing that.  Good news, good news.  But what do you make of that last character?
Joseph

Offline Cliff Ruggles

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Re: 1972 Corvette Carburetor
« Reply #4 on: March 07, 2015, 02:40:35 PM »
For the most part auto carbs will end in even numbers, and manual transmission carbs in odd numbers, but there are several exceptions to this basic rule.  Quite a few of the exceptions are with Oldsmobile carburetors, and some Service Replacement numbers......Cliff

Offline 1979SE

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Re: 1972 Corvette Carburetor
« Reply #5 on: March 09, 2015, 11:54:42 AM »
That would account for mine, then - it's for an Oldsmobile, and I also think it was a service replacement part.
Joseph