madmanadam Posted April 22, 2003 Share Posted April 22, 2003 I have just noticed that I'm leaking abit on my headers to head. Is any one else running theses D port heads? If so what are you using for gaskets. My engine is a ZZ4 crate with 58cc alum? Anyone using copper? Part#'s? Thanks Adam Quote Link to comment Share on other sites More sharing options...
madmanadam Posted April 23, 2003 Author Share Posted April 23, 2003 Did a search found what I was looking for. What a great place!!! copper RTV is great? Thanks Adam Quote Link to comment Share on other sites More sharing options...
Corzette Posted May 11, 2003 Share Posted May 11, 2003 Copper works great! Quote Link to comment Share on other sites More sharing options...
Modern Motorsports Ltd Posted June 3, 2003 Share Posted June 3, 2003 copper RTV is great? Adam yes it is great in some uses, I find it too soft for exhaust sealing when you have a questionable surface (ie. you need the silicone to remain in place under some pressure). Between nice flat matched surfaces most all seem to work well. I'd suggest building up the inside of your 2100's to match the D port better. Leave the header port slightly oversize but if you build it up and then file/machine flat you'll have a much improved sealing surface. I fought sealing issues for years on my setup and hope to now avoid it entirely. My father had his 2100's welded up internally to better match up to his Lt1 D port heads......otherwise they'd leak excessivly at that lacking mismatch on the bottom of the ports. HTH Quote Link to comment Share on other sites More sharing options...
pparaska Posted June 3, 2003 Share Posted June 3, 2003 Wow, I was wondering about this fitment issue. My Canfields have the D-port and I'll probably grind the ceramic coating off the 2001 header port bottom and weld/grind to match. Quote Link to comment Share on other sites More sharing options...
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