Manifold gaskets safe for headers?
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Senior User
Joined: Aug 2006
Posts: 255
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From: Pendergrass, GA
Manifold gaskets safe for headers?
I got a set of headers from a guy the other day and also had to get a head gasket set. I was wondering if I could use the gaskets that came for the exhaust manifolds when I put the headers on.
Elder User
Joined: Aug 2011
Posts: 685
Likes: 0
From: Cape Coral, Florida
After doing alot of reading i got a set of Remflex header gaskets and Stage 8 hardware cause i only want to do them once. I think if your headers have standard flanges the better gaskets are a big plus.
Cargo Master
Joined: Oct 2010
Posts: 3,417
Likes: 32
I agree. The only way to get leak free headers is to A, use good gaskets, B, use locking fasteners I.E. stage 8's, and C, use a torque wrench on every bolt. Also it's a good idea to put some anti seize on each bolt if you ever want them to come out again.
Postmaster
Joined: Nov 2011
Posts: 2,553
Likes: 10
I've had good results with no gasket... just a thin bead of high temp orange RTV. Others have as well. Why does it work so well? There is nothing to "blow out". The RTV is very thin. This is the recommended (no gasket) for Sanderson headers.
It works best if the header flange is thick and flat.
It works best if the header flange is thick and flat.
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 83
From: NorCal
IMO, manifold gaskets are too thin for use on headers. Use a quality gasket intended to be used for headers ... Percy's, Remflex, etc.
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Post Fiend
Joined: Apr 2008
Posts: 8,261
Likes: 15
From: Big Sky Country
X2 on the Percy's, their "dead soft" aluminum gaskets with Stage 8's have been leak free 9yrs running on my FE.
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