is there a kit that will block off the ports left open on the rear of the heads when i remove the smog crap?
how to block off the ports from smog pump on the heads
- Thread starter SaleenGT2001
- Start date
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You can do it on your own just as easily. It can just be closed with a proper sized bolt I believe. I'm sure someone will be able to give you more details, the PO of my car did it for me
On second thought, I'll sell you a kit, $50 
comes with everything you need
Kit contains:
1-bolt
1-thread tape or locktite (customers choice)
1- instruction booklet
comes with everything you needKit contains:
1-bolt
1-thread tape or locktite (customers choice)
1- instruction booklet
87GT Drop Top
Member
It's 5/8 course threads. The only problem is the holes usually have so much carbon build up you can't get them in there. I took my pipe off and cut the part off that bolted to the head. Then I welded the hole shut on the piece I cut off and bolted them back on.
87GT Drop Top
Member
thanks man its my buddys race car though.... ill make a thread for it....dont wanna hijack this guys thread... thanks for the bolt size...
thanks for the info. i got some 5/8 by 1" bolts and after about 10 min of PB blaster and working the bolt in and out with an impact they are both all the way down to the head with teflon tape on them.
that was an easy fix
that was an easy fix
lancec2c30
Member
I am not sure which spark plug you are supposed to use, but the stockers I pulled out of the 5.0 didn't work. Not to mention all the carbon build up.
So I just bolted the crossover tube back on and capped it off.
So I just bolted the crossover tube back on and capped it off.
Erg Port Block off
As a note for future reference, not all heads are threaded for the 5/8" bolt or set screw. Mine (that were not threaded) were E7 heads off a 1993 Thunderbird 5.0. On these I used a plate to go over main hole and a 1/4" bolt to hold the plate on. THE threaded 1/4" hole is already existing.
A kit of(2) plates and(2) bolts can be bought for $15-19.00.
As a note for future reference, not all heads are threaded for the 5/8" bolt or set screw. Mine (that were not threaded) were E7 heads off a 1993 Thunderbird 5.0. On these I used a plate to go over main hole and a 1/4" bolt to hold the plate on. THE threaded 1/4" hole is already existing.
A kit of(2) plates and(2) bolts can be bought for $15-19.00.
87GT Drop Top
Member
There are threads in the big hole. It's just so full of carbon you can't see them.
For my Edlebrock alum heads: I used 5/8 x 1" bolt. Got aluminum drain plug washers, and used anti-seize on threads.
Cleaned the hole out with carb cleaner plus working bolt in and out. What a pain with the heads on the car!
I've done this twice with success each time with the engine still in the car. LMR.com also sells a Pypes plug kit for the ports as well but you need to have the heads off or engine out of the car IMO to install them.
This is how I did it.
Left side gets installed on right side and flipped over and then repeat for opposite side. Piece of cake.
The thermactor plug kits from the front of the heads fit the rear. The threaded slugs go in with a screwdriver and are flush or lower than the head surface.
On the back, bolts and a washer are easier to get out when you change your mind. When I wanted the extra plugs out, I tried making a tool from hardened steel after using penetrating oil, and just bent the tool.
On the back, bolts and a washer are easier to get out when you change your mind. When I wanted the extra plugs out, I tried making a tool from hardened steel after using penetrating oil, and just bent the tool.
