What air horn can I use for a 7042263 Quadrajet?
 

One of the accelerator pump ears on my ‘72 Quadrajet is cracked and I want to replace the air horn, since I can’t find the exact carb as a core, what other numbers can I use?

You may consider this:

https://www.carburetion.com/Products...px?part=R24-55

or:

https://quadrajetpower.com/accelerat...ng-repair-pin/

HTH

I have one and installed it but not confident in it as a long term solution, I’d much rather a replacement air horn.

The airhorn used on the 7042263 carburetor is unique to that application.

If it were mine, I would simply repair the original. It really is not difficult, I have posted the method on this forum in the past.

Jon

I've got a desirable core that has this ear broken. Its been in a box of carbs for years, I figured it was wasted. Thanks for this!

Repair is realistic. Did that and it held for, well probably still holding.