Carburetor ffor LS5

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Jun 15, 2014 | 10:03 PM

jciten@hotmail.com

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Carburetor ffor LS5

I have a 1971 LS-5 all original. I need a correct carburetor, preferably one that has been rebuilt.

Can anyone help on my search for the Rochester carb for my 454?

Last edited by jciten@hotmail.com; Jun 25, 2014 at 08:21 AM.

Jun 16, 2014 | 06:54 AM

Easy Mike

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From: Southbound

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7041204 for auto trans; 7041205 for 4 speed. You should also look for a correct date range.

Jun 16, 2014 | 07:01 AM

grumman41

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Just curious, does yours have the CEC components currently? I may have spelled the acronym wrong, its the emission components, one mounts to the drivers side of the carb.

Kevin

Jun 16, 2014 | 08:16 AM

Don Rickles

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Quote:

Originally Posted by grumman41

Just curious, does yours have the CEC components currently? I may have spelled the acronym wrong, its the emission components, one mounts to the drivers side of the carb.

Kevin

You have the "Combined Emission Control" or CEC acronym correct for 1971 only. What's your question about the system? Maybe, I can help?

WB

Jun 16, 2014 | 02:00 PM

jciten@hotmail.com

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Hi Mike
It seems the number for the 4 speed is for a '71 GMC truck

Jun 16, 2014 | 02:09 PM

PRNDL

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From: Huntersville NC

Quote:

Originally Posted by jciten@hotmail.com

Hi Mike
It seems the number for the 4 speed is for a '71 GMC truck

How do you figure? It is possible that Rochester Qjets with those numbers were also used on GMC trucks, but according to a source I consider to be generally reliable (The Corvette Black Book) those were the numbers on Qjets originally installed on 1971 Corvettes with 454/365 hp engines.

This is another one of my favorite sources for carb numbers:

http://www.oemcarb.net/partlist.htm

Last edited by PRNDL; Jun 16, 2014 at 02:16 PM.

Jun 16, 2014 | 06:48 PM

63vette427

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From: Windham NH

7041205 is the correct carb. I also have a 71 LS5 4 sp. with the original carb..

Jun 17, 2014 | 09:16 AM

Easy Mike

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Quote:

Originally Posted by jciten@hotmail.com

...It seems the number for the 4 speed is for a '71 GMC truck...

Check your source. The Corvette Black Book and the 1968-82 Corvette Specifications Guide are my sources.

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Jun 17, 2014 | 11:36 AM

Mike Ward

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Best be prepared to wait several years for the correct carb with appropriate date to show up unless you get really lucky. Be aware also that rebuildable cores sometimes go for $750.

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