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Exhaust Manifold Help

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Old Nov 9, 2006 | 01:45 PM
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Default Exhaust Manifold Help

I need to buy some exhaust manifolds for my '76 to replace the headers that came with it. My question is this: What is the copper tubing that hooks into the manifold called? I can only find manifolds that don't have this piece installed, but I am going to need it in order to pass the smog test.

Any help would be greatly appreciated.

-Runnik
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Old Nov 9, 2006 | 01:48 PM
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Are you asking about the AIR equipment?
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Old Nov 9, 2006 | 01:48 PM
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I've heard them called smog tubes (logical, huh), you'll also need an air pump (belt-driven), a diverter valve, and I think some other miscellaneous hardware.

I think you'll spend the least on the best parts at a salvage yard, most of the components except the manifolds were used on millions of vehicles.

Steve
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Old Nov 9, 2006 | 01:48 PM
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Plumbing for the air pump - air injection pipe. You can buy that left or right side 21.95

https://www.rockauto.com/applet3.html

Last edited by Hvymtlc5; Nov 9, 2006 at 01:51 PM.
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Old Nov 9, 2006 | 02:07 PM
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Originally Posted by halfmoontrail
I've heard them called smog tubes (logical, huh), you'll also need an air pump (belt-driven), a diverter valve, and I think some other miscellaneous hardware.


Steve
Thanks a lot guys!!

Anybody have some pictures of these?
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Old Nov 9, 2006 | 07:42 PM
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have you checked out the C4 manifolds? i seem to recall they flowed really well and i think they have bungs in them so you could probalby plumb anything you needed
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Old Nov 9, 2006 | 10:43 PM
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Default Not intended to Hijack the thread

I have looked everywhere to find a set of the A.I.R. tubes for my 80 and finally said the heck with it. I have plugs in the holes as we don't have any emission requirements in my state. I would like to buy a set myself and keep them with everything I removed from my car, just in case I ever give it to one of my sons. they live in California and would need to have everything that the smog natzi's require.. If anyone finds a source for the correct tubes for a 1980, please post the source or pm me. I bought a used set on evel bay, but they are a bit grim. I guess I could get by with them if need be, but I would really like new ones. Sorry, I didnt mean to hijack the thread.
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