If memory serves (i had 2 409's and a 348, back in the day), the sealer on the head bolts were due to them going into the water jacket area. Ray On Jan 28, 2008, at 2:19 PM, Mark Lindahl wrote: Hi Gary, The local Chrysler dealer does not have that 1122893 part number in their system. I remember taking the heads off an old Chevy 409 (sorry! non-mopar!) and it seemed like the head bolts had some type of gasket sealer on the threads of the bolts. Could this have been used so the head bolts did not loosen up? OK, start with all those Cheby jokes now! It sounds like any head gasket sealer is not needed, but I thought I would ask first. Thanks, Mark [Non-text portions of this message have been removed] To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/ Yahoo! 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: mailto:Chrysler300-digest@xxxxxxxxxxxxxxx mailto: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/