Quadrajet Problem Solving > Quadrajet Parts and Numbers
Carb ID
jhill71455:
Hello, I am new to this forum. Need help identifying this carb. I know it's from a 72 Pontiac f/b or GTO w/auto. but I am not sure what the last # is. Thanks, Jamie
Shark Racer:
I'd guess 7042276 or 7042278.
*6 is a 72 455 carb, 71 jets 43 rods CR secondary rod.
*8 is a 72 040 carb, 72 J, 46 rods, CS secondary.
Both are high altitude carbs so probably a bit lean calibrated. Verifying the secondaries would be a start, if they haven't been changed.
Ethan1:
Looks like #7042276, but need a better photo.
jhill71455:
Sorry it took so long. Here is a better pic. Does anyone know if they would stamp the last number at a later time? Does anyone have a pic of one with a "6" stamped on it?
Thanks again! Jamie
jhill71455:
So after looking at it blown up, I am sure it is a six. Is this carb. as rare as the 0? I was told the 0 carb. is very rare. Is this the same application as the 0? Thanks
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