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Quality gaskets?

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Old Dec 18, 2020 | 05:00 PM
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Default Quality gaskets?

Hey all.

Who is the "go to" company for gaskets now? James (standard or fire ring)? Cometic? Gary Bang?

Blue Silicones still the way to go for pushrod tubes? Any specific manufacturer?

Been many years since I've done a rebuild! Most likely just a top end kit, got at least 1 bad head gasket.

Thanks!
-Brian
 
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Old Dec 18, 2020 | 05:21 PM
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Following
 
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Old Dec 18, 2020 | 05:26 PM
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cometis MLS for head gaskets - 3 piece tin over alloy thin center
cometic AMF for any thing that was paper - blown foam over thin alloy center

expensive but the best stuff you can buy today and its all we use in the shop not worth doing the job over for a paper gasket
 
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Old Dec 19, 2020 | 06:39 AM
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Originally Posted by johnjzjz
cometis MLS for head gaskets - 3 piece tin over alloy thin center
cometic AMF for any thing that was paper - blown foam over thin alloy center

expensive but the best stuff you can buy today and its all we use in the shop not worth doing the job over for a paper gasket
Thank you and a couple follow-up questions please.

1. On the MLS. Is there a reson they specifically call out the thickness, ie .040? This seems to be only done on the MLS, not on the other ones or even other manufacturers.
2. Cannot find Cometic AMF anywhere, not even their website. Any chance you were refering to EST? Something else?

-Brian
 

Last edited by chopper_man; Dec 19, 2020 at 07:04 AM.
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Old Dec 19, 2020 | 06:47 AM
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I like Cometic
 
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Old Dec 19, 2020 | 08:59 AM
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+1 on Cometic. I still prefer the cork for the pushrod tubes over the blue silicon.
 
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Old Dec 19, 2020 | 01:08 PM
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#2 on cork we do use the blue for the spring and washer center as they do not squash down like the better sealing cork but do not need to and they keep the works tighter over time
 
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Old Dec 19, 2020 | 03:18 PM
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I had used Cometic gasket in the past with no problems.
 
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Old Dec 19, 2020 | 03:23 PM
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Originally Posted by johnjzjz
cometis MLS for head gaskets - 3 piece tin over alloy thin center
cometic AMF for any thing that was paper - blown foam over thin alloy center

expensive but the best stuff you can buy today and its all we use in the shop not worth doing the job over for a paper gasket
I'll second this, Cometic.
 
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Old Dec 19, 2020 | 07:09 PM
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Thanks everyone! I guess I must have lucked out with the blue pushrod gaskets. I put them in about 15 years ago when I rebuilt it the first time, still in there with zero leaks!

I ordered the Cometic full bike kit, C9964. It comes with MLS Head gaskets, AFM Exhaust gaskets and EST for everything else. Also found out the signifigance of them calling out 0.40 on the head gaskets. The 40's are stock, 0.30's for high compresion.

Gasket kit with acronyms called out:
https://www.zippersperformance.com/c...o-engine-kits/

.40 vs .30 reference:
https://www.zippersperformance.com/c...-head-gaskets/

-Brian
 
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