Question to anybody using the Moroso Blue V/C gaskets

I heard somewhere that the valve cover has to be flat with no lip to hold the gasket..... is this the case? I have the Mopar ribbed V/Cs and they have a lip for the gasket.

Trying to cure a V/C leak so want to be sure I use the new $50 gaskets correctly.

Thanks

Tom

They should be fine,mine fit inside the lip of my old M/T valve covers just like a regular cork gasket.I am very happy with mine.

I have them under my old stamped aluminum direct connection covers. They fit within the lip. Best valve cover gaskets i've ever bought. No leaks , no glueing, no replacing squished out rubber or cork.

They have worked on every cover I have tried so far. I still have about 7 sets left from a prior sale, so I can accomodate if any one needs them. Still reduced shipping rate.