Quality Header Gaskets for BBC - Team Camaro Tech
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post #1 of 12 (permalink) Old Jan 19th, 19, 02:20 PM Thread Starter
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Quality Header Gaskets for BBC

I have a 454 in a 70 Camaro, Headman ceramic headers, and an aggravating "tat tat tat" leak on #5 that I can't tighten out of. It appears to have a multi layer aluminum gasket now. Which brand is the hot ticket now? Not concerned with re-use etc, just want a quality gasket to get rid of that leak. Saw some made by MAHLE, Mr. Gasket, Remflex..... more names than I ever knew made them.

-Craig

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post #2 of 12 (permalink) Old Jan 19th, 19, 02:24 PM
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Re: Quality Header Gaskets for BBC

I like Percy's Dead Soft Aluminum gaskets; but nothing is going to seal if your headers are warped. While you have them off put a straight edge across the flange and measure to see how far off flat they are.

If they are too warped you are going to have to cut a tube and reweld it, which negates your ceramic coating.

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post #3 of 12 (permalink) Old Jan 19th, 19, 02:51 PM
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Re: Quality Header Gaskets for BBC

I've been using Remflex without issue, don't attempt to bend them though.
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post #4 of 12 (permalink) Old Jan 19th, 19, 03:26 PM
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Re: Quality Header Gaskets for BBC

I have always used FelPro….but if your flange and head is not dead nuts flat, nothing is going to seal

always advised re-tighten header bolts after a few heat cycles after initial install
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post #5 of 12 (permalink) Old Jan 19th, 19, 03:29 PM Thread Starter
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Re: Quality Header Gaskets for BBC

Thanks Dave, I saw that brand as well. On a small block I had that wouldn't seal, I just cut the flange and it pulled up fine. These headers/gaskets were on already on this particular car so I'll try gaskets first.
By the way, the 396 goes in my 69 on Monday. Took awhile but I done lots more engine bay work etc than I intended. Oh, and no headers!

-Craig

Quote:
Originally Posted by Larger Dave View Post
I like Percy's Dead Soft Aluminum gaskets; but nothing is going to seal if your headers are warped. While you have them off put a straight edge across the flange and measure to see how far off flat they are.

If they are too warped you are going to have to cut a tube and reweld it, which negates your ceramic coating.

Big Dave

Prepare to be the center of attention when you drive a first generation Camaro. You will be gawked at. Grown men & women will coo like children when you drive past. Children will scream like babies. Dogs & cats will get along. Does it get any better?
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post #6 of 12 (permalink) Old Jan 19th, 19, 03:32 PM Thread Starter
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Re: Quality Header Gaskets for BBC

These are hard gaskets?
Quote:
Originally Posted by rodent4 View Post
I've been using Remflex without issue, don't attempt to bend them though.
Yeah I'm not sure on these. The Headmans are relatively new so hopefully a thicker/plyable gasket will take care of it. I tried tightening them but they were pretty much as tight as they are going to get.
Quote:
Originally Posted by SoCal805 View Post
I have always used FelPro….but if your flange and head is not dead nuts flat, nothing is going to seal

always advised re-tighten header bolts after a few heat cycles after initial install

Prepare to be the center of attention when you drive a first generation Camaro. You will be gawked at. Grown men & women will coo like children when you drive past. Children will scream like babies. Dogs & cats will get along. Does it get any better?
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post #7 of 12 (permalink) Old Jan 19th, 19, 06:18 PM
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Re: Quality Header Gaskets for BBC

Use of Ultra Copper RTV can also be helpful addition in sealing header gaskets.
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post #8 of 12 (permalink) Old Jan 19th, 19, 06:54 PM Thread Starter
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Re: Quality Header Gaskets for BBC

Dave, Just found out the brand gaskets on the headers now. Percy's Seal-B-Good is the brand. Believed to have been on the car since 2015 installed. Car has been driven around 3500 miles.

-Craig

Quote:
Originally Posted by Larger Dave View Post
I like Percy's Dead Soft Aluminum gaskets; but nothing is going to seal if your headers are warped. While you have them off put a straight edge across the flange and measure to see how far off flat they are.

If they are too warped you are going to have to cut a tube and reweld it, which negates your ceramic coating.

Big Dave

Prepare to be the center of attention when you drive a first generation Camaro. You will be gawked at. Grown men & women will coo like children when you drive past. Children will scream like babies. Dogs & cats will get along. Does it get any better?
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post #9 of 12 (permalink) Old Jan 20th, 19, 03:20 PM
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Re: Quality Header Gaskets for BBC

I have found that if the weld for the tube is in the inner part of the flange, then ground flat, the chance is high that one or more ports don't seal well. Use a flat edge to check these welds, or the entire flange for warping. I don't think there's a gasket out there that can compensate for much warpage.

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post #10 of 12 (permalink) Old Jan 20th, 19, 09:18 PM
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Re: Quality Header Gaskets for BBC

Quote:
Originally Posted by Craig1969 View Post
These are hard gaskets?
Soft and fragile, sorta like trying to bend a wafer biscuit
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post #11 of 12 (permalink) Old Jan 21st, 19, 04:40 AM
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Re: Quality Header Gaskets for BBC

Try using a double set of gaskets and spray some copper coat in between them and they should seal even if a little warped.
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post #12 of 12 (permalink) Old Jan 21st, 19, 05:27 AM
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Re: Quality Header Gaskets for BBC

I use the regular gasket along with Mr gasket soft aluminum
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