head question
- Thread starter T-Bone
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T-Bone
Active member
Re: head question
I'll try to get a clear pic to post. Haven't come across this before but it is not what you are referring to John. This hole is about the size of a fat ball point pen and it sits within a 1/2 inch of the front top of the head, right behind the alternator and it is located on both heads so I am guessing they were manufactured this way.....just this one sprays antifreeze out of a pinhole area in the middle when hot?????
I'll try to get a clear pic to post. Haven't come across this before but it is not what you are referring to John. This hole is about the size of a fat ball point pen and it sits within a 1/2 inch of the front top of the head, right behind the alternator and it is located on both heads so I am guessing they were manufactured this way.....just this one sprays antifreeze out of a pinhole area in the middle when hot?????
BoostedSUV
Active member
Re: head question
Are they vortec heads? If so it could be the bolt hole for the factory vortec intake manifold. These holes get plugged when used for a vortec swap on our application. The front bolt holes would be into water jackets if that's the case... Just a thought :dunno:
Are they vortec heads? If so it could be the bolt hole for the factory vortec intake manifold. These holes get plugged when used for a vortec swap on our application. The front bolt holes would be into water jackets if that's the case... Just a thought :dunno:
T-Bone
Active member
Re: head question
Not sure if they are vortec's but a simple valve cover removal can answer that. Will put up a pic soon and get a consensus result but I sure hope you are right and it is not a cracked head instead. I am kinda pursuaded it is not a cracked head since it is spraying AF out of the center of the hole. It looks like it was plugged OR sealed previously. Thanks for the input though.
Not sure if they are vortec's but a simple valve cover removal can answer that. Will put up a pic soon and get a consensus result but I sure hope you are right and it is not a cracked head instead. I am kinda pursuaded it is not a cracked head since it is spraying AF out of the center of the hole. It looks like it was plugged OR sealed previously. Thanks for the input though.
T-Bone
Active member
Re: head question
The 2 top pics are the P/S and they aren't leaking (yet).
The 2 remaining pics are the D/S and the one with my finger tip in the pic is the one spraying antifreeze. Heads are NOT cracked so that has been eliminated. The fluid is seeping out of the center of the hole area. Thinking a weld should stop it but the area in question looks like a hex fit.....any knowlegable OR professional advice appreciated.
The 2 top pics are the P/S and they aren't leaking (yet).
The 2 remaining pics are the D/S and the one with my finger tip in the pic is the one spraying antifreeze. Heads are NOT cracked so that has been eliminated. The fluid is seeping out of the center of the hole area. Thinking a weld should stop it but the area in question looks like a hex fit.....any knowlegable OR professional advice appreciated.
REVEREND HARMON
Party in a box!
Re: head question
Those are vortec heads. When you do the conversion the original intake bolt holes get blocked off using a screw in plug. I got a set that just had jb weld in them and had to burn it out and retap them. Just clean out the hole and see if it has a allen head on the plug. If so take it out and put a new one in with either silicone on the threads or thread sealant.
If i remember right there are eight of the holes. Four of them are visible on each corner of the heads and four of them are under the intake.
Those are vortec heads. When you do the conversion the original intake bolt holes get blocked off using a screw in plug. I got a set that just had jb weld in them and had to burn it out and retap them. Just clean out the hole and see if it has a allen head on the plug. If so take it out and put a new one in with either silicone on the threads or thread sealant.
If i remember right there are eight of the holes. Four of them are visible on each corner of the heads and four of them are under the intake.
T-Bone
Active member
Re: head question
Thanks for the speedy reply. Will try to back the problem ones out and reseal them. Any suggestion on what to use. Hoping Hi-Temp sealant should fix the issue. If this fixes it, I will jump for joy cause I love driving this Typhoon.
Thanks for the speedy reply. Will try to back the problem ones out and reseal them. Any suggestion on what to use. Hoping Hi-Temp sealant should fix the issue. If this fixes it, I will jump for joy cause I love driving this Typhoon.
Those are vortec heads. When you do the conversion the original intake bolt holes get blocked off using a screw in plug. I got a set that just had jb weld in them and had to burn it out and retap them. Just clean out the hole and see if it has a allen head on the plug. If so take it out and put a new one in with either silicone on the threads or thread sealant.
If i remember right there are eight of the holes. Four of them are visible on each corner of the heads and four of them are under the intake.
REVEREND HARMON
Party in a box!
Re: head question
I just used hi=temp silicone.....the gold stuff. Havnt had a problem with them leaking yet.
I just used hi=temp silicone.....the gold stuff. Havnt had a problem with them leaking yet.
T-Bone
Active member
T-Bone
Active member
Re: head question
Harmon, thank a million!!!! I bought 4 steel threaded plugs, coated them with hi-temp sealer, installed and then let the Ty sit for 36 hours and drove it today.....not a single drip and I wasn't easy on it. I removed most of the orange hose wrap since underneath was braided SS lines but I think I am goona have to find a turbo blanket. The SS braided line above it was too hot to even touch and I am not too comfortable with that being the case. Guess there was a reason that ugly hose lined with a heat wrap material was installed. For now, no drips or leaks.
Harmon, thank a million!!!! I bought 4 steel threaded plugs, coated them with hi-temp sealer, installed and then let the Ty sit for 36 hours and drove it today.....not a single drip and I wasn't easy on it
. I removed most of the orange hose wrap since underneath was braided SS lines but I think I am goona have to find a turbo blanket. The SS braided line above it was too hot to even touch and I am not too comfortable with that being the case. Guess there was a reason that ugly hose lined with a heat wrap material was installed. For now, no drips or leaks.
BoostedSUV
Active member
Re: head question
I'm going to give myself credit for calling the problem.... Harmon can have the credit for the step by step instructions to solve it. :rotf:
Glad you got it straightened out :tup:
I'm going to give myself credit for calling the problem.... Harmon can have the credit for the step by step instructions to solve it. :rotf:
Glad you got it straightened out :tup: