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10-28-2018, 09:29 AM | #1 |
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Copper head gasket or best Kevlar?
Am I correct in thinking that the Model A engine was built using copper head gaskets? I never had much luck with copper on a couple V8 Ford engines so I thought I would go with the Best gasket that Brattons sells,Kevlar and graphite. Anyone successfully use this gasket? I am having second thoughts because of a post from an experienced engine rebuilder who uses only copper.Brattons sells a Felpro copper gasket but only says it has a gray material in the middle not what kind.A better copper gasket available preferably USA?
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10-28-2018, 09:49 AM | #2 |
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Re: Copper head gasket or best Kevlar?
Back in the '50s I did a LOT of work on flathead V8s, the available head gaskets were either copper clad or steel clad. We always used the copper clad ones with no sealer and never had a problem. You have to be sure that both the head and the block are perfectly clean and that the gasket is installed w/the proper side up.
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If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn! Last edited by katy; 10-29-2018 at 09:29 AM. Reason: clarification |
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10-28-2018, 11:21 AM | #3 |
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Re: Copper head gasket or best Kevlar?
More info on the Ford Garage.
Home page http://www.fordgarage.com/ Head Gasket info http://www.fordgarage.com/pages/ABcy...asketguide.htm Do not see info on a solid copper gasket. Has info on what was originally used. |
10-28-2018, 11:45 AM | #4 |
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Re: Copper head gasket or best Kevlar?
I prefer copper as they are easier to remove and can often be re-used. I've never had a problem with them sealing. Best makes their #509 in copper or some kind of material that works well but is a pain to scrape off when changing heads.
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10-28-2018, 12:03 PM | #5 |
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Re: Copper head gasket or best Kevlar?
The Secrets of Speed Society recommends the Best Graphtite gaskets with no sealant. I have never had a problem with these gaskets either with Y-Blocks or Model As. They recommend 55 ft lbs max.
http://www.secretsofspeed.com/gaskets.htm Last edited by Y-Blockhead; 10-28-2018 at 01:48 PM. |
10-28-2018, 02:43 PM | #6 |
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Re: Copper head gasket or best Kevlar?
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10-28-2018, 05:44 PM | #7 |
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Re: Copper head gasket or best Kevlar?
Back when Brumfield was making heads he would not honor warranty if any head gasket was used other than the Copper FelPro 7013.
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10-28-2018, 11:51 PM | #8 |
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Re: Copper head gasket or best Kevlar?
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10-29-2018, 08:48 AM | #9 | |
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Re: Copper head gasket or best Kevlar?
Quote:
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10-29-2018, 09:06 AM | #10 |
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Re: Copper head gasket or best Kevlar?
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10-29-2018, 10:54 AM | #11 |
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Re: Copper head gasket or best Kevlar?
I recently installed a Best brand kevlar (they call it graphite) head gasket on a Model A. I followed all directions exactly. No water seepage, however when pulling a hill in 3rd gear at 45 MPH or so, the combustion gasses are getting into coolant and blowing the water out the radiator overflow.
Yes, I have re-torqued it (read above where I followed ALL directions). The block/head are flat. Going back to copper gaskets. No problem with those. |
10-29-2018, 04:31 PM | #12 | |
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Re: Copper head gasket or best Kevlar?
Quote:
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10-29-2018, 04:51 PM | #13 | |
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Re: Copper head gasket or best Kevlar?
Quote:
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10-29-2018, 05:14 PM | #14 |
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Re: Copper head gasket or best Kevlar?
Could also do radiator exhaust test yourself. $45 dollar Napa Block test kit.
Radiator issue? -How old is it? - Has it been flushed and back flushed recently? - Empty it, block the upper and lower openings, should hold 1 1/2 gallons. - Could be partially plugged or if old fins not making good contact with tubes. - How old is the radiator, fins/inch, rows ?. - When run and and stop/turn off, does it burp coolant? (running hot?) Last edited by 30 Closed Cab PU; 10-29-2018 at 05:15 PM. Reason: corrected s[pelloing, conttent |
10-29-2018, 09:22 PM | #15 |
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Re: Copper head gasket or best Kevlar?
When using the spray type copper products on head gaskets I do three light coats and allow plenty of time between coats to let the solvents flash off making it very tacky.
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10-29-2018, 09:47 PM | #16 |
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Re: Copper head gasket or best Kevlar?
I know you guys are just trying to be helpful, and I thank you.
However, I am most positive that it is combistion gases blowing into the coolant. No question. That is fact. Otherwise, I wouldn't have said it. Fordbarn forum can be a blessing and a curse at the same time. Someone comes on here and says their steering is loose and there is always someone quick to tell them their timing is off. |
10-29-2018, 10:21 PM | #17 |
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Re: Copper head gasket or best Kevlar?
We produce a copper one that is sealed around outside edge so no weeping down the block , can also be used on B engines too . Wet & cold in NZ plus 6.7 earth quake few mins ago.
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10-29-2018, 10:48 PM | #18 |
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Re: Copper head gasket or best Kevlar?
Copper!!!! Larry Brumfield knows!!!
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10-30-2018, 04:25 AM | #19 |
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Re: Copper head gasket or best Kevlar?
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10-30-2018, 08:22 AM | #20 |
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Re: Copper head gasket or best Kevlar?
To each their own.
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