OK, a little controversy has developed here. Putting aside the fact that originally there were no manifold-to-head gaskets, when using them, does it make any difference whether the metal side faces the manifold or the head? Why?
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Re: Exhaust manifold installation argument...
Shiny side of gasket goes against the exhaust manifold. you could trim them so that a judge could not see them -
Re: Exhaust manifold installation argument...
Dave,
The last Corvette, or small block chevy for that matter, that used gaskets between the head and manifold was 1956 and I believe Lyndon is correct. The shinny metal side goes against the manifold.
MichaelComment
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Re: Exhaust manifold installation argument...
Controversy or not all 55 265 engine car and vett I've had , had them . Metal side faces manifold. Options will always be given about anything not written in stone. I always felt pity for those Corvette owners that had a vary early or late production Corvette, because they have to defend their Corvette from so called the normal Corvette.Comment
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Thanks, all - I love it when I'm right. *NM*
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Re: Exhaust manifold installation argument...
For what it cost - I don't personally believe GM used them and I've had more trouble with exhaust leakage using the gaskets than not. This assumes flat surfaces are present. And in passing, I'd suggest that NCRS judges will detect the use of e/man gaskets in spite of efforts to trim/hide them.Comment
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Re: Exhaust manifold installation argument...
Dave,
I'm sure no expert on any of the 50's cars but I did happen to find this in a May 1963 printing of the parts book. It lists; Gasket, exh manifold, 1955-56 passenger,Corvette.....3711675 in group # 3.270. Hope that helps.
MichaelComment
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Re: Exhaust manifold installation argument...
I believe in therory the gasket is to make up for warped surfaces that occur over time from heating and expansion cycles. I believe the exhaust manifold would expand and contract more than the cylinder head. So, the gasket makes up for the imperfections in the two surfaces. The steel side of the gasket faces the exhaust manifold because it has the most expansion and contraction (movement) during the heat cycle. The steel side is probly made out of a cheap stainless steel. I think the manifold can move slightly over this surface as it expands and contracts without destroying the gasket. The other side of the gasket tends to stick to the head surface pretty well. Just my thoughts. Could be totally wrong. TerryComment
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