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Old Apr 8, 2018 | 11:00 AM
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Default cometic gaskets
Hey guys,anyone know the correct part #for cometic top end kit? standard bore stock motor with 10:1 wisecos for my 86 flt .I see listings for #c9635 but for 92 and up, will that work?
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Old Apr 8, 2018 | 12:19 PM
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Originally Posted by 86glider
Hey guys,anyone know the correct part #for cometic top end kit? standard bore stock motor with 10:1 wisecos for my 86 flt .I see listings for #c9635 but for 92 and up, will that work?
Thanks
If it's only the top end then yes it will work but you will have 2 umbrella valves in the kit that you don't need.

Does the kit you are looking at tell you how thick the head/base gaskets are?
 
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Old Apr 8, 2018 | 02:10 PM
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no it does not ,I guess I can call the factory tomorrow. I'm looking for .030 on the head?
 
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Old Apr 8, 2018 | 02:20 PM
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Originally Posted by 86glider
no it does not ,I guess I can call the factory tomorrow. I'm looking for .030 on the head?
If it doesn't specify then the gaskets are stock thicknesses.
40 or 45 thousandths for the head (don't remember right now) and 20 for the base.

In most cases you want to replace the stock head gasket with a 30 thousandths head gasket.
 
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Old Apr 8, 2018 | 03:31 PM
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My stock head gasket was .060" installed James 0.030" gasket.
Let me know please if your piston has valve relief in the top,mine did not,curious,that's all.
 
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Old Apr 8, 2018 | 07:52 PM
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THC-so you would say go with.030 being i've got an ev27 going in and 10:1 pistons? Better compression but will it be harder to turn over? I think I tracked down the p# c9851 w/.30
head gasket or c9747 for .045
thanks
 
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Old Apr 8, 2018 | 07:55 PM
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Originally Posted by glidein wide
My stock head gasket was .060" installed James 0.030" gasket.
Let me know please if your piston has valve relief in the top,mine did not,curious,that's all.
Not sure about valve relief? they are flat top pistons
 
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Old Apr 9, 2018 | 05:52 AM
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Originally Posted by 86glider
THC-so you would say go with.030 being i've got an ev27 going in and 10:1 pistons? Better compression but will it be harder to turn over? I think I tracked down the p# c9851 w/.30
head gasket or c9747 for .045
thanks
Yes I would.
 
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Old Apr 10, 2018 | 08:38 AM
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I had a 10-1 Ev-27 cam combo never had a starter problem. I now have a 11:1 woods 9b still no starter problems. I do not have compression reliefs.
 
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Old Apr 10, 2018 | 03:56 PM
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Forgot to mention...we like pictures here !!
 
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