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View Full Version : afr 165 , coolant passages



desert fox
01-19-10, 10:06 PM
i have a set of afr heads and they are a little older . they have the coolant passage so they require the cometic c5911-040. has anyone ever used these heads? afr 165 #1399 58cc chambers , stud mount . should i be concerned or was this a good idea , anyone?