General Category > Quadrajet Carb Talk and Tips
Specs for a 17058204
Kenth:
Here are the specs i have found on the 17058204:
(Airvalves are measured from back edge of open valve to the back side of chokeblade housing).
Cadman-iac:
--- Quote from: Kenth on October 10, 2025, 11:51:23 AM ---Here are the specs i have found on the 17058204:
(Airvalves are measured from back edge of open valve to the back side of chokeblade housing).
--- End quote ---
Thanks Kenth, much appreciated.
I got this one in a partial disassembled state, so I didn't know what to expect. The main jet size is surprising, but I guess with the air bleed sizes, it makes sense.
Many thanks.
Rick
So if you don't mind looking it up, what are the specs for the California version of this, I think it's a 17058504.
Kenth:
Here is the California 17058504 unit:
Cadman-iac:
--- Quote from: Kenth on October 10, 2025, 01:34:46 PM ---Here is the California 17058504 unit:
--- End quote ---
Wow! quite a bit of difference. I'm surprised, but then again, no, im not. California really screwed stuff up back then, and probably still do.
Thanks for this, very helpful.
On a related note, each of these carbs are listed as fitting several types of vehicles in 78, from an El Camino to a truck.
Being different vehicles, and therefore weights, would the calibrations be different for each application?
Or because the carb number is the same for each vehicle type and weight, the calibrations are the same?
Does that 3 letter code on the carburetor mean a specific calibration, or am I way off base here?
Thanks for your help,
Rick
Cadman-iac:
--- Quote from: Kenth on October 10, 2025, 11:51:23 AM ---Here are the specs i have found on the 17058204:
(Airvalves are measured from back edge of open valve to the back side of chokeblade housing).
--- End quote ---
Kenth,
I forgot to ask about the float settings for these. Would you mind posting those for me.
Thank you very much.
Rick
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