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Author Topic:   Thin Headgaskets
Dirt Forum Racer

Total posts: 100
posted November 29, 2005 04:27 AM  
Has anyone used the thin Felpro headgaskets on a SBC? They are about .015" when compressed instead of the usual .041". Just wondered if they are more prone to failure under racing conditions. Thanks.

Dirt Roller

Total posts: 5
posted November 29, 2005 08:44 AM  
I have used them with no problems. Just make sure you have good surfaces on block and heads.

Dirt Forum Champ
Total posts: 762
posted November 29, 2005 01:45 PM  
As long as your mating surfaces are perfect as they should be, the gasket will be less prone to blow out.

nine finger
Dirt Forum Racer

Total posts: 93
posted November 29, 2005 04:21 PM  
those steel shims are hinda funny about leaking coolant on am endurance engine. i have been using the victor .021 composite gasket with a little better sucsess. we have blown them also on 10.5-1 pump gas motors also though. good luck

Dirt Full Roller

Total posts: 51
posted November 29, 2005 06:12 PM  
I didn't use them, but my buddy ran them on his bomber for almost 2 full seasons before he spun a bearing. I think if you follow what everyone else is saying, and just make sure you gasket surfaces are true, you'll be fine.

Dirt Forum Champ
Total posts: 507
posted November 29, 2005 07:30 PM  
First you need to know what your deck height is! If you're zero-decked you can't run a .015 gasket, that's too tight of a quench, you'll bounce the pistons off the head!

Dirt Forum Racer

Total posts: 100
posted November 30, 2005 12:26 PM  
Thanks for the opinions guys. Everything will be flat when it goes together - deck height isn't a problem on this engine. Just trying to get a little extra compression out of the parts that I have for another season!

Dirt Maniac

Total posts: 124
posted December 01, 2005 01:22 PM  
We've run the fel-pro 1094 gasket for years. It is a rubber-coated steel shim gasket w/.015 compressed thickness. We run our pistons in the whole between .012 and .015.

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