Sealing Rocker bolt holes
Sealing Rocker bolt holes I ported the heads on my LS1 and can't seem to get the rocker bolt holes in the intake ports to stop leaking. I first used red RTV sylicone and that stuff is garbage for sealing up threds, then I tried Permatex's high temp teflon thred sealer, and I still seem to be leaking some oil. Has anyone every tried to use engine epoxy or something of that sort to seal off the rocker bolt hole in the intake port?
Staging Lane
Joined: Apr 2005
Posts: 93
Likes: 0
From: Coastal NC
Go to the local Chevy dealer parts counter, and tell them you want the "GM Thread Sealer" that is used on the intake manifold bolts on vortec engines. It is a combination thread locker and thread sealer. It probably has a million other uses but when I changed the intake manifold last time, I went by the book and went and got some of it from the dealer. Be warned they are proud 
of it!
of it!
Originally Posted by Diamond Jim
Go to the local Chevy dealer parts counter, and tell them you want the "GM Thread Sealer" that is used on the intake manifold bolts on vortec engines. It is a combination thread locker and thread sealer. It probably has a million other uses but when I changed the intake manifold last time, I went by the book and went and got some of it from the dealer. Be warned they are proud of it!
of it!
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I use Rector-Seal pipe thread sealant which is used for natural gas and water piping in the plumbing trade. It will seal things that other sealants won't and I have been using it in engines for about 10 years now with no problems.
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