We use Viton PC seals (the blue seals) instead of Teflon. The seem to work a lot better for street and strip use. Nick Alfano Performance 4849-76 st. Kenosha, WI. 53142 262-308-1302 262-942-8271 after 6pm central and weekends Date: Thu, 21 Feb 2008 20:18:51 -0800 (PST) From: Greg Taylor <amundaza@xxxxxxxxx> Subject: Re: [Amc-list] Bronze Valve Guides & Seals To: "AMC/Rambler owners, drivers and fans." <amc-list@xxxxxxxxxxxx> Message-ID: <554401.2058.qm@xxxxxxxxxxxxxxxxxxxxxxxxxxx> Content-Type: text/plain; charset="iso-8859-1" Bruce, Thanks for the good feedback on the bushing and seals. I think that I am just going to have the machinist install bronze liners inside the AMC cast iron guides, since he can get them for a lot less than the cost of the big SBC bronze ones I emailed about. Also, I did not realize that the teflon seals were not desired for 'normal' use. That's REALLY good to know! Thanks! Sincerely, Greg Taylor :) <>< Bruce Hevner <scramblr@xxxxxxxxxxx> wrote: While using the guides you have referred to will work (I used to MAKE Bronze guides) I have some advice from 40 years of using them. You should NOT use the white Teflon seals with them, especially if it's a street motor!! The white Teflon seal is really for hi-performance use where spring size will not allow anything else to fit. It does NOT work well on the street under high vacuum conditions. I ONLY use them as a last resort where nothing else will fit. You would not think something made from Teflon would wear steel but they will! Hard chrome resists wear from the seal pretty well but standard valves will end up with a "notch" where the seal contacts it. _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list