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Old 03-30-2006, 03:44 PM
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Question about .015 head gaskets - FelPro 1094

Hello, I'm a new member. I have a 1980 Corvette with a 3.73 rear and the motor on a stand.

I want to increase the compression on my small block from approximately 9:1 to 9:5 or more to accommodate a Summit 224/234 .465/.488 cam that I've purchased. I'd like to use FelPro 1094 which is a .015 as opposed to the .041 that I already have. Are there any considerations or compromises to take into account when using a thinner compressed head gasket? It's seems obvious that .015 is much lower than the standard size head gaskets out there so that's why I'm questioning.

My engine is a .030 over 350 with 041 .194/64cc heads. The pistons are flat cast aluminum with 4 valve reliefs. I tried to cc the cylinder volume at 1/2" and made a mess, but I came up with about 9.1 to 9.3 compression. I measured the piston in the hole and they're down there pretty far - about .050. I really want to try to put this top end together myself and learn how to do this in the process. This is a somewhat low-buck project so I'm not installing new pistons for higher compression. Thanks very much for any input.

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Old 03-30-2006, 03:52 PM
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As long as the block and heads are FLAT, you should have no problems with the thinner gaskets. If your heads have not been milled, now would be a good time to do so. The gaskets come with a sealant already on them so don't use any additional sealer. BTW, they will also improve your quench situation so it's a win-win situation.

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Old 03-30-2006, 04:08 PM
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Thanks Tom, I appreciate the help. I'll check on the heads and block with my machine shop tomorrow. Thanks again!
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