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Quadrajet question


I picked this up with a bunch of other stuff the other day. The previous owner was not sure of it originality other than it was from a mid sixties car. I could not find a date # or anything that can tell me what it is. I am asking anyone out there that can ID  this carb. Thanks 



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65 SD Convertible



Canadian Poncho Superstar!

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The number 704 should be somewhere on that carb, if it is a sixties Quadrajet (1965-1974). I hope i got that right. Good luck. 



-- Edited by long stroke on Saturday 3rd of November 2018 01:43:00 PM

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looks just like the one on my 66 327 linkage wise, part # on a round disc.



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This should help ID it

www.rodauthority.com/tech-stories/fuel-cooling/choose-your-quadrajet-number-identification-guide/

 

Just looking at the pics, it is for a Chevy, Old, Buicks etc had the fuel inlet sticking out the front, not to the side. And it is older, I would guess late 60s-early 70s. 



-- Edited by poncho62 on Saturday 3rd of November 2018 04:54:18 PM

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If the number 7032720 is the model number then the 4th last digit (2) indicates the year which would be 1962 or 1972. Don't believe there was a 1962.

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I have found the same carb on carbs unlimited and I believe it is a 7026200 used on 65-66 396&427 chev. Will it run a 327 or is only for big blocks?

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It is a 65-67 Quadrajet and the number would have been pressed into the disc on the side of the body in photo 3 on an insert sometimes silver, red, blue or green in colour. In 68 the numbers were stamped into the body closer to the rear. Without that insert you really can't say what number it is. It will work with proper adjustment on any GM engine with a spread bore intake. 



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the applicaton number for that car is MIA, all you're going to see is the casting numbers;
That funny round spot on the side of the fuel bowl by the throttle arm is where the 1966-1968.5 Quadrajets had an aluminum coloured disc affixed which had the manufacture date, and the application number.
The fuel bowl to me looks to be a Chevrolet casting, as far as I am aware, all but a few big block applications for Chevrolet received a side inlet fuel line.

Although improbable, it could also be a Cadillac unit, as those too received side inlet fuel lines.

There are ways to try to narrow down the original application, but from here, it's all uphill.

Just a note;
I see that '73SC' says it's a 65-67 casting;
I am unaware of 1965 Quadrajets being made - but I guess it is possible;
I do know that the Quadrajet was used for a year by Chevrolet before other divisions got to use the Quadrajet;
The first year Pontiac's could have a Quadrajet was 1967 - so to me at least, logically 1966 was the first year for Chevrolet - but I could be wrong.

The stamped disc application ID method was used during the 1967 calender year, which included early manufactured 1968 model year units.

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It looks like a 65-66 as the secondary air valves are dampened by the arm on the top left rear valve, rather than a link from the vacuum break on the other side.



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If I had to take a really educated guess based on my gut feel on that carb and using my own knowledge plus what unruhjonny has written I'd go with a 1967 327  Chevrolet. The side inlet tells us its a Chevy, Cadillac carbs are just way to hard to find even though they are side inlet.



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Ray White, Toronto ON

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Built March 9, 1973 - Oshawa ON

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unruhjonny wrote:


I am unaware of 1965 Quadrajets being made - but I guess it is possible;

I do know that the Quadrajet was used for a year by Chevrolet before other divisions got to use the Quadrajet;

The first year Pontiac's could have a Quadrajet was 1967 - so to me at least, logically 1966 was the first year for Chevrolet - but I could be wrong.



Jonathon, there would have been a Quadrajet on Chevrolet in 1965 because of the 396, and the Pontiacs in 1966 because of the 396/427. At least I am quite sure of that. I've never seen anything but a Qjet or Holley on those years of 396/427.

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Check your parts books for the q jet intakes? Ive not had experience with anything much newer than a 64 and no q jet or bbs.

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