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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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Head question

  • Thread starter Thread starter 5.8liter
  • Start date Start date Jun 3, 2005
5

5.8liter

New Member
Mar 4, 2003
221
0
0
Jun 3, 2005
#1
  • Jun 3, 2005
  • #1
If you have no smog equipment, what do you guys normally use to plug up the holes in the back of the heads?
 

Stang8URMPRT

Active Member
Dec 28, 2003
1,100
1
38
Daytona Beach, FL
Jun 3, 2005
#2
  • Jun 3, 2005
  • #2
http://store.summitracing.com/partd...t=TFS-51400265&autoview=sku&Ntk=KeywordSearch

 

5spd GT

"the 5.0 owns all"
Founding Member
Aug 7, 2002
9,516
6
99
Arkansas
Jun 3, 2005
#3
  • Jun 3, 2005
  • #3
If you are going to delete the smog pump then you will need a threaded insert known as a thermactor plug. They screw into the back and front of your heads. Put silicone on the threads to prevent any exhaust leak when installing them. The thermactor plugs you will use for the front (same as back) will go to make the head holes smaller so the accessories can bolt up like your power steering stud and one of your bigger alternator bolts that go through you alternator bracket. The back thermactor plugs you will use just block off and delete the smog equipment’s previous hookups. You can get them at a Ford Dealership - part # F4ZZ-6E086-A or you can buy some from Summitracing - part # TFS-51400265 and they run anywhere from $3 to $12 dollars from what I have seen. Summit has them cheaper.
 

Stang8URMPRT

Active Member
Dec 28, 2003
1,100
1
38
Daytona Beach, FL
Jun 3, 2005
#4
  • Jun 3, 2005
  • #4
Beat ya to it, David!!
 

5spd GT

"the 5.0 owns all"
Founding Member
Aug 7, 2002
9,516
6
99
Arkansas
Jun 3, 2005
#5
  • Jun 3, 2005
  • #5
Stang8URMPRT said:
Beat ya to it, David!!
Click to expand...

I'm mad now



We even posted during the same minute...lol.

Oh and put some high-temp silicone on the threads when you install them to prevent them from backing out or leaking.

I have antiseize on mine (going into aluminum heads) and they haven't backed out or leaking as far as I know
 

Stang8URMPRT

Active Member
Dec 28, 2003
1,100
1
38
Daytona Beach, FL
Jun 3, 2005
#6
  • Jun 3, 2005
  • #6
Yep.. I used Silicone on my AFR's and they sealed just fine! Make sure to use some kind of sealant, or you could end up with an exhaust leak.. and those things aren't too fun getting out with the heads on the car.
 
0

01SN8K

New Member
Jun 9, 2004
135
0
0
Jun 3, 2005
#7
  • Jun 3, 2005
  • #7
well a cheaper alternative is to scavenge the hardware store for somt bolts to fit in the holes. did that on my 95 with no problems. it should be the same thread as one of the larger bolts on the front holding the accessory bracket to the heads.
 

Stang8URMPRT

Active Member
Dec 28, 2003
1,100
1
38
Daytona Beach, FL
Jun 3, 2005
#8
  • Jun 3, 2005
  • #8
Or you could spend 6 bucks on the CORRECT plugs and do it right the first time...
 
A

airflow89

New Member
Jun 3, 2005
3
0
0
Jun 3, 2005
#9
  • Jun 3, 2005
  • #9
plug da hole

Make sure u use a high temp sealant. Most new sets of heads will come with threaded plugs to replace the exhaust cross over tube. Seal em, screw em in, and go out and beat that stang!!!!
 

stang22

Active Member
Jan 29, 2003
1,318
7
38
Washington, D.C.
Jun 3, 2005
#10
  • Jun 3, 2005
  • #10
If you wanted to "temporarily" plug them, cut the threaded part of an old spark plug off and plug it with that. That is until the dealer gets em in for you. Not the right way, but a temporary fix.

Tim
 

NosPony

New Member
Apr 2, 2004
278
0
0
Canton, Il
Jun 3, 2005
#11
  • Jun 3, 2005
  • #11
Just go get 2 bolts for like 50 cents. That is what i did with my stock heads.
 
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