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Old 07-29-2006, 02:04 PM
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Quadrajet Carb rebuild....parts interchange with another junk carb?

I just started rebuilding my quadrejet carb...After taking it apart I found a few problems, like a bent metering rod. I was wondering if I can take one out of my junk carb. The one I am rebuilding is a 1973 oldsmobile 455 750 cfm, I think, #7043252. The junk carb that I want to steal parts from is from a late 70s chevy 1 ton truck with a 454 800cfm with the pullotion crap #17056212. Are all or most of the parts interchagable like the baseplate or throttle body and the metering rods?? (BTW it is going on chevy 350)

Also the rebuild kit that I bought did not come with new springs for the accelotor pump, power piston etc.? I just reuse my old ones or is it common that a rebuild kit comes with new springs.


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Old 07-31-2006, 10:31 PM
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I think the metering rods are different between the 7-digit and 8-digit carbs. Probably more stuff, but I can't say for sure.

You're supposed to re-use your pump and power piston springs.
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Old 07-31-2006, 10:44 PM
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Unless the rods are the SAME length and the SAME diameter, I would not swap them. The early rods are shorter than the later (170*****) carbs. Try to very carefully straighten the rod, usually lightly tapping it with a small hammer with the rod on a hard surface. They are fairly soft so don't try to bend it with your hands or pliers.

Re-use the springs like Jim said.

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