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		| RE: Original FE parts durability/reliability question | 
	 
		| By RJP - 04/12/2001 1:07:17 PM; IP 152.163.213.77 | 
	 
		| Steel shim gaskets require a perfect surface on both head and block to seal properly. [ didn't know they were still available] but with modern sealers such as Hylomar I suppose they will work just fine although I haven't used them in over 30 years. Sodium Valves: Throw them away, especially old sodium valves. Ford recommended they be replace every rebuild under racing conditions. Age can cause the sodium to corrode the metal from the inside out. I wouldn't put the engine at risk. Buy a set of stainless valves from one of the many suppliers such as REV and S.I.  | 
	 
 
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