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Re: 6.7 Cumminbs thicker head gasket
Posted to HD/Fleet Forum on 8/10/2020 4 Replies

Because in almost all diesels there is no combustion chamber in the cylinder head, it is totally flat. So milling it does not affect the compression ratio other than the small amount from the valves protruding further.

On the other hand milling the block doe... Login to read more.

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