Also, use new (not reused) head nuts. Later, JR ----- Original Message ----- From: "Mark Durham" <62vair at gmail.com> To: "Byron Comp" <byron.comp at yahoo.com> Cc: <virtualvairs at corvair.org> Sent: Monday, March 21, 2011 9:44 PM Subject: Re: <VV> Head Problems Make sure you replace the head and base gaskets, or if copper, anneal before reuse. Mark Durham