Intake gaskets wicking coolant

G'day from Australia everyone!!

Thanks for welcoming me to the forum!!

I came across an older thread posted by 71DodgeDemon340. I have tried to message him directly but his messages are full.

regarding felpro intake manifold gaskets wicking coolant when I was looking for information due to mine doing exactly the same thing. I noticed it doing it not long after my engine was built and the cam run in. This has not had any street time before I noticed the gaskets with the wet look and even before I introduced coolant into the system (only water in there to start off with) Running edelbrock performer rpm heads and edelbrock performer airgap manifold.


I've checked everything that he he did, like bolt hole depth, (definitely blind holes too)bolt lengths, straightness of heads/manifold etc. Even changed them out for the felpro steel laminated set and aviation sealed all threads. Lasted for a couple of weeks before I noticed it doing the same thing. When the engine has been run for a while at operating temperature the gaskets seem to return to their original light grey colour, then after sitting around they start wicking the coolant again. Never any leaks whilst engine is running.

I was wondering if he had found a solution? He did mention that he had a set of edelbrock gaskets that he was going to try? Did they rectify the issue? I also have purchased some to try. Have not fitted yet.


Any feedback would be greatly appreciated. I'm hitting a dead end here with any helpful information or solutions for rectifying this problem. The attached pictures are the first set of gaskets which have now been changed. It's doing the same thing again with the new gaskets.

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