They said those were for stepped freeze plug holes. The B/RB engines just have plain holes, did they still work ok? Do the plugs have a flange to keep them from going in too far? I never had a problem with my RB engines,I use hardening Permatex, but I do dread trying to install the dished plugs in my 392. I have heard a lot of horror stories about them popping out. Bill Huff At 4/12/201009:41 AM, Louis M. Barrie wrote: > > >Mark - this happened to me and Big Yellow - over 5 years ago on an early >break in run. I used the milled stainless steel plugs from Hot Heads >Research and Racing: > ><http://www.hothemiheads.com/main_caps/freeze_plugs_stainless.html>http://www.hothemiheads.com/main_caps/freeze_plugs_stainless.html ><http://www.hothemiheads.com/main_caps/freeze_plugs_stainless.html> > >Never had a problem since - this is a notorious problem with the 413. > >Louis M. Barrie >West Hills, CA >Home of Big Yellow > >-----Original Message----- >From: ><mailto:Chrysler300%40yahoogroups.com>Chrysler300@xxxxxxxxxxxxxxx >[mailto:Chrysler300@xxxxxxxxxxxxxxx]On >Behalf Of Mark Souders >Sent: Sunday, April 11, 2010 6:08 PM >To: <mailto:Chrysler300%40yahoogroups.com>Chrysler300@xxxxxxxxxxxxxxx >Subject: [Chrysler300] Freeze out plug > >This morning I was driving my 300H and three miles from the house, I pulled >out from a traffic light, and something went POP. Then there was a white >cloud of smoke coming from under the car. I pulled off the highway, opened >the hood and found that a freeze out plug removed itself from the left head. >With the help of a few gallons of water, I nursed it back home. Now I need >to know what size plug goes into that hole, what kind to get, and how do I >install it so that it won't escape again? The FSM is very evasive about this >subject. This plug has been in the head for 8 years and 13,000 miles, not >rusted out, the whole plug is gone, and the paint is chipped off the upper >control arm. I'm glad it didn't happen a few hundred miles earlier, when I >was in Myrtle Beach! > >Thanks for the help, > >Mark Souders >300H >Mohrsville, PA > >[Non-text portions of this message have been removed] > >[Non-text portions of this message have been removed] > > [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: Chrysler300-unsubscribe@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: 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/