I ordered stainless steel from boltsandnuts.com enough bolts and nuts that
will do it for every part of the engine.   Took the studs out and replaced
them with SS bolts too.
Washers too.  Used anti seize of course with them.  Grounded the whole
engine with the "loop" I make against any corrosion and electrolysis inside
and out.
The best you can do.
Zoltan
----- Original Message -----
From: "John Bange" <jbange@GMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Saturday, July 23, 2005 11:03 AM
Subject: Stainless vs Copper exhaust nuts

Other than the fact that the copper nuts are self-locking and
stainless aren't, is there any reason one is preferrable over the
other for the exhaust system? How about stainless vs regular carbon
steel for the bolts into the head?