Carb Stamping Decode

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Jul 6, 2008 | 12:28 AM

wolfemc

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Racer

Joined: Apr 2008

Posts: 263

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From: Maineville OH

Carb Stamping Decode

I'm trying to verify the numbers on a newly acquired 1970 L46 that's so far very original. I've run into a snag on the Carb. It's a Carter/Rochester Q-jet with GM stamping 7040200. Most online resources list 7040207 as the correct number, but this one lists the 7040200 as being used on 1970 chevelles and vette (maybe BB), but is difficult to read.
http://www.digitalcorvettes.com/foru...ad.php?t=88376
All help is appreciated.
Mark

Jul 6, 2008 | 07:44 AM

Jud Chapin

Race Director

Joined: Sep 2001

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From: Wellington, FL

St. Jude Donor '11 thru '25

According to Corvette Black Book, 7040207 is the correct carb for the 350/350 with manual tranny. It does not show the 7040200 on any '70 Vette.

Jul 6, 2008 | 08:01 AM

Jud Chapin

Race Director

Joined: Sep 2001

Posts: 10,560

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From: Wellington, FL

St. Jude Donor '11 thru '25

In looking at the site you refer to, the info was produced by Lars. Why not contact him regarding the numbers?

Jul 6, 2008 | 08:25 AM

jim2527

Race Director

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From: Tampa, Florida

Looks like a '70 BBC carb.

Jul 6, 2008 | 11:17 AM

Alan 71

Team Owner

Joined: Sep 2006

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From: Westminster Maryland

Mark,
I looked at the NCRS 68-72 Tech Manual and it calls for 7040207 for a 70, 350/350, 4 speed. So I agree with Jud.
Regards,
Alan

Jul 6, 2008 | 11:58 AM

dennis

Drifting

Joined: Sep 1999

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Quote:

Originally Posted by Alan 71

Mark,
I looked at the NCRS 68-72 Tech Manual and it calls for 7040207 for a 70, 350/350, 4 speed. So I agree with Jud.
Regards,
Alan

or 7040507 for the calif version

Jul 6, 2008 | 02:29 PM

wolfemc

Thread Starter

Racer

Joined: Apr 2008

Posts: 263

Likes: 4

From: Maineville OH

Thanks for the help guys

You've convinced me to find my copy of "Corvette by the Numbers" that I bought about 15 years ago when I wanted to buy my first vette.

Thanks again,
Mark

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