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-   67-81 Firebird & TA Parts WANTED (https://forums.maxperformanceinc.com/forums/forumdisplay.php?f=452)
-   -   Wanted EGR backpressure valve 1978 400 (https://forums.maxperformanceinc.com/forums/showthread.php?t=804961)

dreamn69 05-08-2017 12:14 AM

Wanted EGR backpressure valve 1978 400
 
I need the backpressure valve from a 78 400. My Formula's is missing.

77 Canamman 05-08-2017 07:33 PM

1978 manual trans 10006987

1978 auto trans 10004749

https://www.hiltopautoparts.com/prod...55-ci-engines/

https://www.hiltopautoparts.com/wp-c...87-350x350.jpg

https://www.hiltopautoparts.com/prod...00-ci-engines/

https://www.hiltopautoparts.com/wp-c...49-350x350.jpg

dreamn69 05-09-2017 10:11 AM

Thanks

Jhankins 01-10-2022 12:23 AM

1977 GP 400 EGR back pressure valve
 
I am also looking for an EGR back pressure valve for my GP. It has an auto trans. I see that this is an old thread but anything for sale?

nUcLeArEnVoY 01-10-2022 08:34 AM

Quote:

Originally Posted by Jhankins (Post 6309399)
I am also looking for an EGR back pressure valve for my GP. It has an auto trans. I see that this is an old thread but anything for sale?

Do you need one for concours resto, or do you just need functionality? Because I'm pretty sure most, if not all current new EGR valves now integrate the backpressure transducer into their mounting base so you don't need the separate transducer, anymore.

Jhankins 01-10-2022 01:24 PM

nUcLeArEnVoY. I just need it to function! I'm not doing a full resto. I'll look into a new EGR valve. Thank you for the info.

starlightblack 01-15-2022 05:10 PM

4 Attachment(s)
Will need a tiny tack weld to re-attach tube but came off a running car

Yours for just shipping

Jhankins 01-15-2022 06:51 PM

starlightblack, thanks for the offer, mine's detached in the same place! I will try and repair mine first. Thanks again!

Calidude 11-03-2025 10:58 PM

3 Attachment(s)
I have one of these and it had what looked like JB weld on it, I tried doing same again but would stick and pressure blew it off.

Mine is a 1976 and looks different than the ones above

I also see one on eBay and looks like it has some kind of plate in a revised design.

I have a fluxcore gas less welder has anyone tack welded these or will it damage? Did they come brazed?

Appreciate any help

burd 11-04-2025 09:38 AM

Try the guy in California. He has, use Amex just in case, he’s sleazy.
Why you want to use an egg, get rid of it.

burd 11-04-2025 09:50 AM

1 Attachment(s)
Picked this up, it’s so nice I’m keeping it , all og, too heavy to ship anyway. Even had the choke shield.

Whiteturd 11-19-2025 02:46 AM

Anyone else know how to repair what Calidude has as I have similar.

Brazing or welding?

Will that hurt it or how were these attached???

Someone is selling one for loads of cash on eBay at $275 that seems way high

burd 11-19-2025 10:20 AM

That’s not loads, these parts aren’t cheap.

SWAP MEETS.


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