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GM 6.0L MLS Head Gasket on 408?

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Old 04-13-2009, 06:04 PM
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Default GM 6.0L MLS Head Gasket on 408?

I tried searching but came up with no definitive answers. Will the GM MLS 6.0L head gasket work on a 408 with 4.030 bore? It seems really close to having some gasket protruding into the cylinders.
Old 04-14-2009, 06:48 AM
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Just to elaborate some more, the bore of the cylinder on the 408 is 4.030". The LS2 6.0L gasket has a bore of 4.039". If using a stock LS6 head, is that enough bore on the head gasket?

Would it be better to use an L92 gasket that is 4.100" bore?
Old 04-14-2009, 06:54 AM
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If your using an LS2 head, I would use an LS2 gasket.

If your using an L92 head, use the L92 gasket.




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