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Re: 6.7 Cumminbs thicker head gasket
Posted to HD/Fleet Forum on 8/5/2020 6 Replies

Don,

Just want to add that a thicker head gasket will lower the compression ratio and affect performance adversely. The only time you would want to use one of those would be if the block deck was resurfaced. The other think you have to check when milling hea... Login to read more.

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