I am not sure if Steal Seal will work on those plugs. I did use it on my 2000 Nissan Truck that had a blown gasket and the gasket got fixed within a couple hours. I almost did not believe it.The sealer works on repairing minor head gasket leaks only but you will need to follow the directions. You can use it as a preventative measure too.
Curious to know if it will work for your application.