Dear 300 Club Member, My 70 300 Hurst with 440 cu in., 375 HP engine, leaks oil from the passenger valve cover, when I run the engine; causing some smoke in the engine compartment - an obvious concern. I removed the valve cover and it had cork gaskets with some orange color sealant ( likely some kind of permatex) on the gaskets. The very old cork gasket was in bad shape. My questions are: 1. Should I use cork again or rubber gasket on the valve cover?Some say that rubber is better. I bought FelPro rubber gaskets from NAPA but have not used them yet. 2. Should I use sealant on the gasket between the gasket and valve cover? 3. Should I use sealant on the gasket between the gasket and engine head. As you likely know, the surface on the head is just smooth casting ( it is not a very smooth machined surface). One friend of mine said the manufacturer of rubber valve cover gaskets said you should not use any sealant on a rubber gasket? Any advice you can give me will be greatly appreciated. Steve Schieser, Chrysler 300 Club member in Columbus, Ohio. [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave Group" button For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylangYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: Chrysler300-digest@xxxxxxxxxxxxxxx Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/