Quote Originally Posted by Weasel Diesel View Post
I have a pair of World S/R heads. Now in the instructions, it says to use a thread sealer on exhaust bolts as the bolt holes intercept coolant passages on some of the holes..OK... I used Permatex liquid type with teflon...leaked,...tried the teflon pipe tape,...leaked. Is there any other sealers out there to use ? It stays good till it gets hot. I figure its melting the sealer being at the exhaustport. Think maybe a high temp RTV ? heck, I don't know, I'm disgusted. I am at the point of putting header studs in with JB Weld to stop it, but that's pretty drastic....HELP please. Called World,... they state the liquid stuff I used should seal it...it don't.
Weasel, my front accessory drive package came with some studs that mount into the block, then have spacer nuts applying pressure to the water pump. The instructions from Rocky Hinge were to coat the threads on several studs with high temp RTV sealer as you said. I have not lit it off yet, but I'm hoping it works as instructed.