| Re: [GMCnet] Remflex gaskets [message #310511 is a reply to message #310483] |
Thu, 17 November 2016 19:17   |
Richard Denney
Messages: 920
Registered: April 2010
Karma:
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Senior Member |
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I have Remflex gaskets on Thorley headers, and I installed them some years
ago. No leaks yet. The center bolt doesn't need to be structurally tight,
but I installed them on my coach. Headers are lighter than manifolds and
much more flexible under thermal load, so they tend to flex instead of
fighting back--one of their key advantages.
With cast manifolds, I would probably prefer copper gaskets--their chief
advantage is efficient thermal transfer so that the cylinder head and
manifold don't have a big jump in temperature at the gasket interface. I
think that's why they were originally installed without a gasket. But
that's not so much of a concern with headers.
With Remflex gaskets, follow the torquing instructions carefully (as Matt
cautions).
Rick "suspecting the graphite is a better thermal conductor that the old
crushable asbestos gaskets" Denney
On Thursday, November 17, 2016, Chris Tyler
wrote:
> I will be needing to replace the gaskets on my coach at some point. It has
> dougs headers on it and has a leak. Not sure what gaskets are on there now.
> Its not that bead yet but on the ever-expanding 'to do' list.
>
> What I have found to work best on other applications is copper header
> gaskets with a thin film of cpper high temp silicone. Much talk on here
> about
> the Remflex gaskets has convinced me to try them. However the first
> oppertunity will be on a 340 Cuda Im reviving
>
> I take it no coatings needed on the Remflex gaskets? Planning on using
> studs for the 340. Prob a combination of studs and bolts on the Olds. I
> remember som talk about not fully tightening the center bolt. Is that on
> headers, manifolds, or both?
>
> If they work out I may use them on a chevy twin turbo engine I will be
> swapping out soon. It has canst iron turbo specific manifolds. Wondering if
> the
> Remflex is the best choice on those, given the heat and pressure.
>
> Hopefully Matt C will chime in
> --
> 76 Glenbrook
>
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--
'73 230 "Jaws"
Northern Virginia
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