rochester carb info help

[lou tecco]

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

[HARDLUCK88]

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.

[Wireman134]

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

[aliensatemybuick]

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.

[BILL DEMMER]

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