rochester carb info help

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Old Dec 5, 2008 | 06:13 PM
  #1  
lou tecco's Avatar
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Posts: 18
rochester carb info help

I HAVE A BRAND NEW ROCHESTER CARB TAG NUMBER
7024050 4GC IN A BOX
WILL THIS CARB WORK ON MY 64 OLDS CUTLASS F85
330 MOTOR 290 HP ULTRA HI COMPRESSION AUTO TRANS JETAWAY
I HAVE A ROCHESTER 4GC ORG CARB ON IT NOW BUT DOES NOT HAVE A TAG WORKS GOOD BUT LOOKS TIRED
ANY HELP ---ANY INFO
IF THE 7024050 DOES NOT HAVE VACUMN SECONDARYS
BUT THE ONE ON MY CAR DOES WHAT CAN I DO
OR CAN ANYONE TELL ME THE RIGHT CARB NUMBER I NEED
Old Dec 6, 2008 | 07:13 PM
  #2  
HARDLUCK88's Avatar
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Joined: Nov 2008
Posts: 199
From: Eastern Seaboard
i heard they called the jetaway transmission the "junk away" because it is garbage... and that people replaced them with later model transmissions... but dont take my word for it.
Old Dec 6, 2008 | 09:40 PM
  #3  
Wireman134's Avatar
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Posts: 123
From: Manhattan, Illinois
That carb is for a
1958-65 400", 425" ENG SUPER 88, 98

I'd try to get a rebuild kit from here:http://www.riley-autoparts.com/CARBURETOR_O.html or here:http://www.cmwauto.com/MainMenu/Engi...dsCarbKits.htm

And rebuilt the original.


NHRA info. for 64 330" carb id. http://www.nhra.com/tech_specs/engin...ts/OLDS-64.rtf

Last edited by Wireman134; Dec 6, 2008 at 10:06 PM.
Old Dec 6, 2008 | 09:58 PM
  #4  
aliensatemybuick's Avatar
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Joined: Jul 2007
Posts: 1,612
I believe that carb is correct for a 1964 Olds equipped with a 394, though as the other user suggested the rebuild kit covers various years and model cars with a 4Jet. It may work on your car, but likely is not jetted properly for it. Not sure about linkage issues either.
Old Dec 8, 2008 | 10:17 PM
  #5  
BILL DEMMER's Avatar
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Joined: May 2008
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From: THE GREAT WIDE-OPEN
per volume 1 of the united delco/rochester number 9 book:
7024050 is correct for super 88, 98, jetstar I, and starfire, all trans. w/o crank case ventilation.

the correct carb. number, for your application is:
7024054 for auto trans.

differences are:
accelerator pump assembly
air horn assembly
primary float assembly
power piston assembly
power valve assembly
venturi cluster assembly-primary
venturi cluster assembly-secondary
primary jets
secondary jets
choke housing
choke stat & cover
choke rod
float bowl assembly
throttle body assembly

4gc carbs. are like a fingerprint, they're very unique to the application.
rebuild your old one and hope and pray you don't need floats-they are unobtainable.

if you don't feel confident doing it yourself, www.sparkyscarbs.com is a great place for a professional rebuild.


bill
Old Mar 30, 2010 | 03:27 PM
  #6  
394lover's Avatar
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Joined: Mar 2010
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From: Portland, OR
Cool rochester carb

Here is a link that will take you to a site where you can download a pdf file that includes complete parts and applications list http://www.newagemetal.com/ for years 1932-1980. Hope it helps!
Old Apr 4, 2010 | 07:33 PM
  #7  
Oldsmobomb's Avatar
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Joined: Jun 2009
Posts: 69
Adding to the earlier posts, carb #7024050 is correct for the listed full size cars with 394 cid engine and no A/C. The Rochester 4GC for A/C equipped cars added an internal bi-metallic idle compensator, and was p/n #7024051
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