Who here runs an O-Ringed block? Leaking head gasket problem!

You can pull the o-rings out and use a two part filler in the grooves. Make sure the grooves are clean and dry. Fill them with the 2 part and let it dry. Run a long board over the decks to make sure all the filler is flush and run it. Done it many times. No need to deck it, if it's flat.

Never did understand why guys try to run o-rings without receiver grooves.

Never did understand why guys try to run anything but copper gaskets with o-rings. It's not new technology.


FWIW I have used JB weld to fill the grooves, as well as Moroso and some stuff I get from Brownells.