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-   -   EGR plate delete on a 1979 7.5l 460 (https://www.ford-trucks.com/forums/1318925-egr-plate-delete-on-a-1979-7-5l-460-a.html)

bullnose1985 06-07-2014 11:44 AM

EGR plate delete on a 1979 7.5l 460
 
[B[Hello all, the old holley 4 barrel 1850 carb needed a rebuild so while pulling it off I noticed that the EGR was a plate sandwiched between the carb base and the intake manifold base.
My question is can I remove the EGR and the plate put carb spacer in its place? Currently the EGR isnt hooked to anything.
What do you think or has anyone had had any experience doing this?
/B]

fasthauler 06-24-2014 10:31 AM

You can get an adaptor that will replace the EGR plate. I put the transdapt 2199 on mine. It is a complete kit so you wouldn’t need anything else. They are getting expensive though. They are currently running about $65.00

bullnose1985 06-24-2014 10:36 AM

Quote:

Originally Posted by fasthauler (Post 14455118)
You can get an adaptor that will replace the EGR plate. I put the transdapt 2199 on mine. It is a complete kit so you wouldnít need anything else. They are getting expensive though. They are currently running about $65.00


Thanks Gary. I ended up just sticking it back on unhooked up of course.

bullnose1985 08-04-2015 04:23 PM

i could get an older non-egr gasket set and fill the egr hole with jbweld. Off the engine of course. Any body ever tried that?

fasthauler 08-05-2015 07:42 AM

Quote:

Originally Posted by bullnose1985 (Post 15548529)
i could get an older non-egr gasket set and fill the egr hole with jbweld. Off the engine of course. Any body ever tried that?

Thatís an interesting concept. I have over the years used JB weld to patch up all kinds of things all the way from cracked blocks to cracked motorcycle cases. I have even raced motorcycles across the desert that was patched back together with JB Weld. But you still have one problem; a square bore carburetors secondaries will not open on that manifold unless you do some grinding on those secondary holes. I am not sure how the JB Weld will hold up with all that expanding and contracting that the hot exhaust gases is going to make the manifold go through. That exhaust really heats up that EGR hole. Another advantage of the adaptor plate is keeping the carburetor cooler. I added the Edelbrock wood fiber spacer on top of the adaptor plate and it completely stopped the carburetor percolating the gas when the engine is run under hot conditions.

bullnose1985 08-05-2015 05:20 PM

Hi Gary, Thanks for your input. I tried looking for the adapter looks like a carb spacer but has a ear on the side between the primaries and secondary at the mating surface.
Could never find one that completely covered that ear area.
I think after the points that you have made i will go ahead with the pre72 gasket and froget the JBWELD.
Thanks again for your input, Jon

redroad 08-15-2015 11:19 AM

Doesn't your 79 have a square bore intake and the Ford/holley square bore 4-barrel ?

bullnose1985 08-15-2015 04:18 PM

Hello redroad, yes it dose however its betqeen the primary and secondary on the passenger side a spacer only covers part of the egr hole.

fasthauler 08-16-2015 12:55 PM

My mistake, I didn’t pay attention to his post. The 79 was a square bore. 78 back had the mickey mouse large secondaries. I hope I didn’t throw you off.

bullnose1985 08-16-2015 08:23 PM

Quote:

Originally Posted by fasthauler (Post 15574192)
My mistake, I didnít pay attention to his post. The 79 was a square bore. 78 back had the mickey mouse large secondaries. I hope I didnít throw you off.

no i am good thanks for interest.

redroad 08-17-2015 11:53 AM

If you don't have the plate then look here ..

http://i1072.photobucket.com/albums/...psfhptwcya.jpg

bullnose1985 05-20-2017 07:19 PM

Thanks redroad, thats how i did it.




Quote:

Originally Posted by redroad (Post 15576321)
If you don't have the plate then look here ..

http://i1072.photobucket.com/albums/...psfhptwcya.jpg


mark a. 05-21-2017 04:13 PM

Get a freeze plug for the size of the hole under the spacer plate. Plug it off there so you don't have to deal with the hot exhaust gas.

bullnose1985 05-21-2017 05:19 PM

Good idea! Thanks Mark!

fasthauler 05-22-2017 09:25 AM

Quote:

Originally Posted by mark a. (Post 17205549)
Get a freeze plug for the size of the hole under the spacer plate. Plug it off there so you don't have to deal with the hot exhaust gas.

Thatís interesting. I never thought about a freeze plug. Would have saved me money on an adaptor plate. Ideally would be an aluminum performer manifold. That way you wouldnít have the intake manifold getting so hot and you would lighten the vehicle by about 50 pounds. Canít do that in California because of the smog checks. You canít modify anything or its an automatic fail. I took mine in one time for grins and ran it through the smog check with the Edelbrock on it and the EGR removed and it actually ran cleaner than with the Factory equipment on it. I mean considerably cleaner. The Nox was 999ppm with the factory equipment and 110ppm with the Edelbrock and all the other numbers were lower as well. It passed with the factory equipment but of course failed with the Edelbrock. We need CARB ran by automotive experts instead of politicians that donít know a differential from a distributor.


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