If you want a 440 I would just put one in. To bore a 413 that far will leave you with a good chance of a hot running engine. Gary Barker mwl1967@xxxxxxx wrote: >Hey all, > getting ready for a rebuild on the 413 in my Ram K. One >machine shop I was referred to wants to sonic test the block and then bore it out >to 440 size standard bore. > > Anyone ever heard of this? Pro's Cons? > > Also, are these blocks prone to cracking near the freeze plugs? >Should I shelve the original block and just build a 440 ? > >Thanks, >Mike Laiserin > > >[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 >Yahoo! Groups Links > > > > > > > > > > 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 Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> 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/