[urq] EM removal

[Thatcher Hubbard]

   I've finally found the time and the location to do an EM 
removal/repair/replace on my '83 with a WX.  I know that at the very 
least I should need:

   EM to head gaskets (x5)
   EM to turbo gasket (x1)
   EM to head studs (x10?)
   IM gasket (x1)

   How can I tell if I have shouldered or non-shouldered nuts from my EM 
studs?  I'd like to have all the parts I could reasonably expect to 
need on hand when I start tearing this thing apart.