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Old 11-10-2018, 03:44 PM
grahamp grahamp is offline
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Default Carter Quadrajet

I have a 69 Carter Quad on my 1969 Judge Ram Air lll, the carbs number is correct - 7029273. I read somewhere that Carters were not installed on Ram lll engines which if true would not be helpful! Any thoughts or input? Car runs perfectly with this carb .

  #2  
Old 11-10-2018, 05:51 PM
Baron Von Zeppelin Baron Von Zeppelin is offline
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Post a good picture of the area where the number is stamped.
We can probably determine more then.


In the 80's and early 90's (perhaps longer) Performance Years used to offer restamped // rebuilt QJets with proper calibrations for that application.

I have one of them for a 1970 // 7040273
It is a Carter

eBayer's got pretty involved in restamped carbs too
still going on since the early 2000's

Carter is going to be a replica
We can probably tell you how many things are correct//incorrect if you post numerous clear pics from numerous angles and provide casting ID numbers from body and baseplate.
Also any small stampings on driver side of baseplate (4 numbers)

But fair warning -
can almost guarantee it won't be encouraging news

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Old 11-10-2018, 06:51 PM
grahamp grahamp is offline
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Thank you, a new den of worms for me. I will figure out how to post some photos. We have rebuilt the Carter and it works well. If I ever wanted to replace it, where would I go to get something legitimate for the car, is there a reliable source for 7028273/7029273 units

  #4  
Old 11-10-2018, 07:54 PM
PurelyGTO68 PurelyGTO68 is offline
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If it works good then I would leave it.
I think I have one of those Carter remans as well. I bought it from Purely PMD in the late 80s. It was calibrated for for my 68 RA II 4 speed. I plan on trying it. If it works then I will be happy. The next guy can search for a 7028273 carb and take his chances on finding an authentic one with correct date range.

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  #5  
Old 11-10-2018, 09:25 PM
Baron Von Zeppelin Baron Von Zeppelin is offline
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I forgot who was providing those "replica" carbs back then.
But during the timeframe i mentioned - they were getting good reviews/feedback.
aka working out well in terms of functions

Most likely PurelyPMD was getting them from the same source as PY - or via PY.
I was a wholesale client of PY back then , PPMD likely was also.

They were not plated // concourse restored units.
And were reasonably priced , no core involved either.

  #6  
Old 11-12-2018, 03:43 PM
grahamp grahamp is offline
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There is casting number on the body of the Carter which is in a circle 7037576, also M48 next to it. The number on the throttle plate is 33691. There are a number of replacement suppliers on the internet, one is The Carb Center in El Monte

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Old 11-14-2018, 11:28 AM
Baron Von Zeppelin Baron Von Zeppelin is offline
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Quote:
7037576, also M48 next to it
7037576 is correct number - but a couple other applications also used that casting.
Still , its a good [better] start than most replicas will be.
So it could be worse.

M48 would be Carter date code - Dec 4 1968
Rochester would not have that - just "GM" in the circle with 7037576


Quote:
33691
That number does not compute
See if there is another seven digit number in a circle [like the body had]

  #8  
Old 11-14-2018, 11:38 AM
grahamp grahamp is offline
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Thanks for the input. Have talked to several carb replacement vendors, a 1969 Ram Air lll rebuilt unit is very rare although I did find one original carb off a Judge for $3900!

  #9  
Old 11-14-2018, 01:02 PM
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blue71ta blue71ta is offline
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if it's a Carter, it's a restamp

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Old 11-14-2018, 01:52 PM
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unruhjonny unruhjonny is offline
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I agree if it's a Carter unit, it was not originally a '273.
From my observations (and I am fine with bein wrong), it appears as though generally the Carter sourced units were primarily for the "bread and butter" drivetrains (eg: L78-400/auto) - and even then, only for the original run - all service replacements (no pick code, and date coded as later than the model year run) were Rochester units.

Pictures will be best, and serve to positively identify what it probably started it's life as.

From what I have understood most any Pontiac 'core' carb can be made to run as any other same cfm unit (ra or otherwise) when given to a capable rebuilder (eg: Cliff Ruggles).

I can see why, before these cars became high ticket items, that a rebuilder may have been incline to recalibrate, and restamp for the application it was calibrated for... but once these started to escalate in value, the only people restamping these are crooks - looking to maximize their return on what most of the time is best described as a 'frankencarb'.

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A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.


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2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
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