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Old 10-30-2003, 02:20 PM
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Join Date: Sep 2002
Location: Hickory, NC
Cobra Make, Engine: ERA 427SC w/427so, ERA GT #2002
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Red,
One last note: The purpose of slip-fit exhaust joints as used in aircraft and race cars is to eliminate the need for gaskets or sealer. As I stated previously, a properly fitting slip-fit joint will seal itself. As the heated inner pipe, which is hotter than the outer, expands it creates a very tight joint. Yes, it may spit a little at first, but will seal tightly when at operating temp.

See the photo of the G7A/GT40 Mk IV CanAm car crossover snake-type pipes. These were very exotic pipes, having been fabricated from titanium. But the slip fit did the sealing. Note bolted tabs at joints.
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