Leaking headers, best gaskets?

Engine, ignition, fuel, cooling, exhaust

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convincor
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Re: Leaking headers, best gaskets?

Post by convincor »

68 Custom Cab Shorty, 390, C6, 9"-3.50:1 Currie T/L
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Re: Leaking headers, best gaskets?

Post by Redcap »

I like the method of milling both surfaces flat (head and header) and sealing up without a gasket.
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Re: Leaking headers, best gaskets?

Post by towtruckerfour »

I've had the same problem but only with the driver side. I've tried Mr Gasket and Felpro and both have leaked. The passenger side does fine. There is not enouhg room to get the header out to really look at it.
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Re: Leaking headers, best gaskets?

Post by SangerDude »

Remflex is the best material I have seen in a LONG time! crushes as you tighten them down.......
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Re: Leaking headers, best gaskets?

Post by Darrman »

Hmm I checked the website, seems they dont have a eight bolt 390 gasket set? All I see is 16 bolt.
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Re: Leaking headers, best gaskets?

Post by robroy »

Good evening Darrman!

I used Remflex gaskets on my 390. Here's the thread where they were suggested to me (several other excellent gaskets were also discussed in this thread): http://www.fordification.com/forum/view ... =3&t=43852

And the thread that shows them being pulled apart (due to an unrelated problem): http://www.fordification.com/forum/view ... =3&t=45367

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convincor
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Re: Leaking headers, best gaskets?

Post by convincor »

68 Custom Cab Shorty, 390, C6, 9"-3.50:1 Currie T/L
"Still Plays With Trucks"
http://s101.photobucket.com/albums/m41/convincor/F100/
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Re: Leaking headers, best gaskets?

Post by jd428jd »

I had the same problem, I fixed it by using two felpro gaskets on each header, also after I put the exhaust back together I let the motor run for about ten min. Then re-tightened the bolts while everything was hot. Wear heat resistant gloves and watch your forearms...
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Re: Leaking headers, best gaskets?

Post by Darrman »

I went ahead and ordered the Remflex gaskets, should get em by the weekend.
For $71 these better be some great gaskets, lol.
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Re: Leaking headers, best gaskets?

Post by papabug71 »

Darrman wrote:I went ahead and ordered the Remflex gaskets, should get em by the weekend.
For $71 these better be some great gaskets, lol.

You know the old saying, you get what you pay for. :thup:
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Re: Leaking headers, best gaskets?

Post by fitzwell »

Victor-reinz gaskets. Bead of hi temp (copper) silicone around the port, both sides. Let silicone skin over for about 15 min & assemble. Check the bolts for the 1st 100 miles or so. Used this method a bunch..never had any problems.
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