Thread: merc 3.7 head gasket
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Unread 02-03-2013, 05:04 PM
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the compression ration on my engine with flats will be 9.4 - 1 not to high should be ok with pump fuel i was working it ot wrong by using the 460 stroke when the 3,7 is lower

460 = 3.85
224 = 3.75
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