Offshoreonly.com - Head gaskets

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vince1645

05-20-2013 08:49 PM

Head gaskets

Whats the best head gasket to run on N/a BBC 10-1 cr with a 4.60 bore

Budman II

05-20-2013 09:32 PM

Cast iron or aluminum heads? Cometic is generally the consensus choice on this board, and some of the FelPro marine gaskets are good too. Head studs would be a very good suggestion with 10:1 compression as well. Hope you are running aluminum heads with that high of a CR on marine build.

Griff

05-21-2013 01:54 AM

Cometic or Felpro Marine. Cometics have more options for gasket thickness.

Ted G

05-21-2013 09:02 AM

Check the Cometic specs for the required RA finish on the parts. If the heads and block are new/newly resurfaced you should be fine but if the finish on both parts is not correct the Cometics will fail. Felpros are more forgiving.

vince1645

05-23-2013 08:22 PM

Yes they are aluminum heads and the surface is new on both sides.
What size bore on the gasket?

GPM	05-23-2013 08:56 PM

4.630

vince1645

05-23-2013 09:32 PM

Thanks

GPM	05-23-2013 10:12 PM

You might want to check out the Felpro 1077 MLS

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