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04-17-2023, 12:44 PM | #1 |
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Location: Central Mass.
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Exhaust Manifold gaskets?
Other engines I have worked on do not use any gasket between the cast iron exhaust manifold and the block or cylinder head. What did Ford do from the factory with the flatheads? I have manifolds machined flat, and ports look good too. If gaskets are supposed to be used, what are the best type? Are there solid copper ones, for example? Thanks!
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04-17-2023, 01:47 PM | #2 |
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Re: Exhaust Manifold gaskets?
Ford flatheads used exhaust manifold gaskets.
I use 2 gaskets on each exhaust port. If you do a Fordbarn search on engine gaskets and head gaskets lots of info. will appear. https://www.bing.com/search?q=ford+f...ANAB01&PC=HCTS Last edited by 19Fordy; 04-19-2023 at 09:04 AM. |
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04-17-2023, 03:35 PM | #3 |
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Re: Exhaust Manifold gaskets?
Even though I have a 6x48 abrasive belt machine and always surface my manifolds, I am a firm believer in the Remflex exhaust manifold gaskets. They are made from graphite and are 1/8" thick and good for something like 3000 degrees. They are relatively soft and wil squish and conform even when surfaces are not perfect. I have them on my model A, my FHV8s and my landcruiser six.
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Owner/Operator of 'Jailbar Ranch' on the side of Mt. Pickett. Current stable consists of 1946 1/2 ton pickup turned woodie wagon with FH V8, 1947 Tonner Pickup (red) mostly stock with exception of a cummins 6at turbo diesel, 1946 Tonner Pickup (green) with 226 cu in 6 cyl flathead, 1979 Toyota landcruiser wagon, completely encased in 1947 Ford Jailbar sheet metal. Ok, cornbinder rear fenders..... 'Rusty ol' floorboards, hot on their feet' (Alan Jackson) |
04-17-2023, 04:24 PM | #4 |
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Re: Exhaust Manifold gaskets?
On my engine test stand I coated the gaskets with copper antiseize since they get removed often. Seems to be working, they come off clean and can be reused.
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04-17-2023, 05:17 PM | #5 |
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Re: Exhaust Manifold gaskets?
Not to hi jack this thread, but to add options, I have these gaskets from Speedway. They appear to be a composite sandwiched between thin metal sides. Are they for exhaust to block or exhaust to manifold pipe?
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04-17-2023, 05:29 PM | #6 |
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Re: Exhaust Manifold gaskets?
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04-17-2023, 06:02 PM | #7 |
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Re: Exhaust Manifold gaskets?
Another vote for Remflex. I have gotten away with no gaskets on my FE engines when using cast iron heads and cast manifolds, when everything is surfaced flat, but I'll admit to never having tried it on a flathead. When I use headers, I used the Remflex and they have worked great for long periods of time.
If everything is surfaced, I wouldn't be afraid to try no gaskets. It'd be easy enough to loosen the manifolds up and slide gaskets in, if needed. |
04-17-2023, 06:35 PM | #8 |
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Re: Exhaust Manifold gaskets?
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04-17-2023, 06:52 PM | #9 |
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Re: Exhaust Manifold gaskets?
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04-18-2023, 09:02 AM | #10 |
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Re: Exhaust Manifold gaskets?
I am using the speedway composite manifold gaskets. They work ok and are reusable.
John
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04-18-2023, 10:20 AM | #11 |
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Re: Exhaust Manifold gaskets?
Where do you find these magic Remflex Flathead exhaust gaskets?
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04-18-2023, 01:49 PM | #12 | |
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Re: Exhaust Manifold gaskets?
Quote:
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04-18-2023, 02:15 PM | #13 |
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Re: Exhaust Manifold gaskets?
Both
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04-19-2023, 01:32 AM | #14 |
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Re: Exhaust Manifold gaskets?
My Napa store has gotten them for me and I'm sure I have gotten them from amazon as well. In the old days I simply called Remflex in the tiny, remote town of Mineral Washington.
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Owner/Operator of 'Jailbar Ranch' on the side of Mt. Pickett. Current stable consists of 1946 1/2 ton pickup turned woodie wagon with FH V8, 1947 Tonner Pickup (red) mostly stock with exception of a cummins 6at turbo diesel, 1946 Tonner Pickup (green) with 226 cu in 6 cyl flathead, 1979 Toyota landcruiser wagon, completely encased in 1947 Ford Jailbar sheet metal. Ok, cornbinder rear fenders..... 'Rusty ol' floorboards, hot on their feet' (Alan Jackson) |
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