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Author Topic: Ford 429 CJ Quadrajet  (Read 3737 times)

Offline Cliff Ruggles

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Ford 429 CJ Quadrajet
« on: August 11, 2019, 04:32:42 AM »
Here's something you don't see too often, a rare Quadrajet for a Ford application.

In 1970-71 Ford used Quadrajets on the 429 Cobra Jet engines.  They also had a special spread bore intake for them, which is a really nice part if you are a Ford guy.

I just restored one in the shop and thought I'd put some pictures of it up here.....Cliff
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Offline qjetsrule

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Re: Ford 429 CJ Quadrajet
« Reply #1 on: August 12, 2019, 12:20:25 AM »
2 questions: Did Ford drill small holes in the secondary POE tubes? Were there different numbers for the stick and automatic 429CJ carbs also with or without a/c?  Thanks
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Offline mcx

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Re: Ford 429 CJ Quadrajet
« Reply #2 on: August 12, 2019, 02:48:39 AM »
...beautiful job!!   Does that  Ford version use a APT in its faceplate?  Could you provide the factory recipe that Ford used on it?
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Offline Cliff Ruggles

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Re: Ford 429 CJ Quadrajet
« Reply #3 on: August 12, 2019, 03:44:37 AM »
It is an APT carb. 

They used a pretty good calibration, small airbleeds and plenty of idle fuel to the mixture screws. 

There were different part numbers for auto and manual trans models, and the auto carbs are easy to spot as they have the long arm to operate the C-6 transmission.......Cliff
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Offline firebird400

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Re: Ford 429 CJ Quadrajet
« Reply #4 on: September 14, 2019, 03:40:06 AM »
"YE public info
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Offline firebird400

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Re: Ford 429 CJ Quadrajet
« Reply #5 on: September 14, 2019, 03:41:07 AM »
Ford Quadrajets
7040285,
7040286,
7040287,
7040288.
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Offline mcx

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Re: Ford 429 CJ Quadrajet
« Reply #6 on: March 11, 2024, 03:05:26 PM »
Hello Cliff…I picked up a nice 7040288 Ford 429/auto Quadrajet….on disassemble, I noticed the air horn only uses the two outer pull over enrichments? Is this correct? It seems so as the casting is not drilled for the other two emulsion tubes.
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Offline novadude

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Re: Ford 429 CJ Quadrajet
« Reply #7 on: March 13, 2024, 08:46:47 AM »
Quote from: mcx on March 11, 2024, 03:05:26 PM
Hello Cliff…I picked up a nice 7040288 Ford 429/auto Quadrajet….on disassemble, I noticed the air horn only uses the two outer pull over enrichments? Is this correct? It seems so as the casting is not drilled for the other two emulsion tubes.

Are you saying it has no main well air bleed tubes, or something else?
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Offline mcx

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Re: Ford 429 CJ Quadrajet
« Reply #8 on: March 14, 2024, 03:56:30 AM »
Yes, it has NO inner emulsion/bleed tubes installed…it only has the outer POE tubes(special multiple hole cross drilled versions)…Cliff mentions them in his book. It all looks factory correct. Nice carb, later/better float design, very small main and upper idle bleeds, rich secondary rods.C6 trans arm too!!
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Offline novadude

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Re: Ford 429 CJ Quadrajet
« Reply #9 on: March 15, 2024, 05:56:54 AM »
Interesting.  I have never seen one without secondary main well bleed tubes.
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Offline Cliff Ruggles

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Re: Ford 429 CJ Quadrajet
« Reply #10 on: March 22, 2024, 01:41:01 AM »
The 429 CJ Quadrajets are factory "high performance" carburetors and unique features not found on other units.  Pretty rare carburetors as well.....
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