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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Exhaust Egr Block Off Screws

  • Thread starter Thread starter GoldenEagle91
  • Start date Start date Jan 24, 2014
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GoldenEagle91

Active Member
Dec 25, 2012
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Jan 24, 2014
#1
  • Jan 24, 2014
  • #1
Hi guys,

I was wondering if someone might be able to tell me where I might find EGR screws to block off the EGR ports on the heads.

Thanks,
Andrew
 

RacEoHolic330

I like to dress like a pretty girl
15 Year Member
Mar 4, 2003
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Allentown, PA
Jan 24, 2014
#2
  • Jan 24, 2014
  • #2
Are you talking about the smog pump ports in the back of the head? The easiest way is to use a pair of spark plugs with the tops hammered off.
 

GoldenEagle91

Active Member
Dec 25, 2012
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Jan 24, 2014
#3
  • Jan 24, 2014
  • #3
I suppose those would be them. I may be wrong but I think that they run all the way through the head too. No disrespect meant or implied but is there a cleaner way to do it rather than taking some spark plugs and snapping the end of them?
 

RacEoHolic330

I like to dress like a pretty girl
15 Year Member
Mar 4, 2003
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Allentown, PA
Jan 24, 2014
#4
  • Jan 24, 2014
  • #4
I'm used to people wanting the quick and dirty way to do something.

http://www.jegs.com/p/JEGS-Performa...ll-Block-Ford-Cylinder-Heads/1686929/10002/-1
 
Reactions: GoldenEagle91

GoldenEagle91

Active Member
Dec 25, 2012
240
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Jan 24, 2014
#5
  • Jan 24, 2014
  • #5
RacEoHolic330 said:
I'm used to people wanting the quick and dirty way to do something.

http://www.jegs.com/p/JEGS-Performa...ll-Block-Ford-Cylinder-Heads/1686929/10002/-1
Click to expand...

Ah yes, there they are. Thank you for your help my friend.
 

89oem

Mustang Master
Dec 18, 2013
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Jan 24, 2014
#6
  • Jan 24, 2014
  • #6
youll get differing opinions but be sure you do an egr computer bypass. computer will want to advance timing etc and can
cause detonation...
 

srtthis

the guy doing it does every local racers rear end
15 Year Member
Jul 3, 2009
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Jan 24, 2014
#7
  • Jan 24, 2014
  • #7
the thermactor ports on the heads you can use a 5/8" set screw

the EGR bolts on the EGR spacer i believe are 5/16" and 3/8"
 

GoldenEagle91

Active Member
Dec 25, 2012
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Jan 24, 2014
#8
  • Jan 24, 2014
  • #8
89oem said:
youll get differing opinions but be sure you do an egr computer bypass. computer will want to advance timing etc and can
cause detonation...
Click to expand...

My engine is going to be carbureted so there will be no problems there.
srtthis said:
the thermactor ports on the heads you can use a 5/8" set screw

the EGR bolts on the EGR spacer i believe are 5/16" and 3/8"
Click to expand...

I will take a look into it. Thanks for the heads up
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
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Jan 24, 2014
#9
  • Jan 24, 2014
  • #9
This thread pertains to the thermactor ports at the rear of the head…just to clarify. It does not have anything to do for the EGR
 

GoldenEagle91

Active Member
Dec 25, 2012
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Jan 24, 2014
#10
  • Jan 24, 2014
  • #10
Mustang5L5 said:
This thread pertains to the thermactor ports at the rear of the head…just to clarify. It does not have anything to do for the EGR
Click to expand...

Just to make sure we're all the same page. Take a look at the first start up of this engine on youtube. The gas that I am seeing escape from the cylinder heads is from the thermactor ports and not the EGR ports correct?

View: http://www.youtube.com/watch?v=3KJn2rNvMjU
 

mikestang63

SN Certified Technician
Aug 27, 2012
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Jan 24, 2014
#11
  • Jan 24, 2014
  • #11
you need to plug the holes in the front of the heads. Same size as the ones for the rears. Put some silocone or thread sealer on them.
 

GoldenEagle91

Active Member
Dec 25, 2012
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Jan 24, 2014
#12
  • Jan 24, 2014
  • #12
mikestang63 said:
you need to plug the holes in the front of the heads. Same size as the ones for the rears. Put some silocone or thread sealer on them.
Click to expand...

I understand, are those not the thermactor ports then?
 

mikestang63

SN Certified Technician
Aug 27, 2012
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Jan 24, 2014
#13
  • Jan 24, 2014
  • #13
GoldenEagle91 said:
I understand, are those not the thermactor ports then?
Click to expand...

They are on both sides of the heads- front and back. You need to plug both. Normally on the front, you install inserts and then screw in the bolts for the accessories but you don't have any accessories. So just put in the 5/8" plugs or for the time being screw in some spark plugs.
 

madspeed

Colonel Mustard
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Nov 29, 1999
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Jan 24, 2014
#14
  • Jan 24, 2014
  • #14
What ive done in the past is remove the crossover tube, havk the ends off, flip them over, and bolt them back up, blicking off the port
 

GoldenEagle91

Active Member
Dec 25, 2012
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#15
  • Jan 24, 2014
  • #15
mikestang63 said:
They are on both sides of the heads- front and back. You need to plug both. Normally on the front, you install inserts and then screw in the bolts for the accessories but you don't have any accessories. So just put in the 5/8" plugs or for the time being screw in some spark plugs.
Click to expand...

will do
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,217
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Massachusetts
Jan 27, 2014
#16
  • Jan 27, 2014
  • #16
Yes,

Those are thermactor ports. Unrelated to EGR

Their job is to provide fresh air, supplied from the air pump, to the first set of cats by being pumped into the exhaust ports on the heads. They are active during cold start, and then the car will begin to pump the air down the tube to the rear set of cats.

If no converters, none of this is needed and you can block it off. Modern, aftermarket converters do not need the o2 suppy as well. Air pumps aren't installed these days on modern cars
 

2000xp8

SN Certified Technician
Aug 8, 2003
8,016
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Jan 27, 2014
#17
  • Jan 27, 2014
  • #17
When i needed the plugs i drove over to ford and they actually had them in stock for a few bucks.
Ford branded packaging and everything.
 

GoldenEagle91

Active Member
Dec 25, 2012
240
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Jan 27, 2014
#18
  • Jan 27, 2014
  • #18
Mustang5L5 said:
Yes,

Their job is to provide fresh air, supplied from the air pump, to the first set of cats by being pumped into the exhaust ports on the heads. They are active during cold start, and then the car will begin to pump the air down the tube to the rear set of cats.

If no converters, none of this is needed and you can block it off. Modern, aftermarket converters do not need the o2 suppy as well. Air pumps aren't installed these days on modern cars
Click to expand...

Yeah there won't be any cats on this build so I'll plug em. Thanks for dropping some knowledge on me about how that system works, did not previously know that.
 

GoldenEagle91

Active Member
Dec 25, 2012
240
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Jan 27, 2014
#19
  • Jan 27, 2014
  • #19
2000xp8 said:
When i needed the plugs i drove over to ford and they actually had them in stock for a few bucks.
Ford branded packaging and everything.
Click to expand...

Rly? I was thinking about just heading over to ace or true value and picking up some 5/8 bolts to use. Would that work as well or would I need to make sure that I trimmed down the bolt length for any reason?
 

2000xp8

SN Certified Technician
Aug 8, 2003
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Jan 27, 2014
#20
  • Jan 27, 2014
  • #20
I'm not sure of the depth needed. It's been a really really long time since i got them at ford, but i was told back then by my mechanic they stocked them, and they did. Came with locktite on them and if i remember correctly they were hollowed out and took allen keys to install.
 
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