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View Full Version : Best Exh. Gasket for Alum. Log Manifold?



MoJetBoPar
06-19-2001, 08:35 AM
Just converted my 18ft jet boat to a set of old Edelbrock log manifolds and am wondering what style or composition of gasket is best when fastening aluminum to a cast iron head?
Steel, paper or the sandwich style that has 2 outside perforated steel layers and a paper center?

spectras only
06-19-2001, 10:15 AM
I'll say the perforated sandwich type

mister460
06-19-2001, 11:45 AM
Either copper or something with a graphite face on it. Aluminum expands more than iron doe and if you use a plain paper gasket it will get torn up and blow out. Make sure the surface of the logs is REALLY smooth. Do all that and you should never have a problem!

JOESHOW
06-19-2001, 12:01 PM
I used the Fel-Pro "Blue" and have had great luck with them so far. I also had the exhaust logs (Glenwood) surfaced at a local machine shop before installing them. Hope this helps. -Shane
[This message has been edited by JOESHOW (edited June 19, 2001).]

Terrible Buddhist
06-19-2001, 12:45 PM
Copper silicone has worked well for me, even on my turbo motor.