Join Date: 04-16-2011
Location: Monongah,West Virginia
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Re: Honda f3 head gasket size check
If I were you I would not use a 67mm head gasket on a 65mm bore. Only if you bored your cylinders to 67mm you would use the 67mm gasket. F2's and F3's are 65mm stock bore. F4's and F4i's are 67mm stock bore. F4i pistons in a F2 or F3 engine is a bargain big bore kit, if you ever need to bore your stock cylinders. You can also use F4i intake cam and move you F3 intake cam to the exhaust side, for a cheap cam upgrade, but you would need adjustable cam sprockets.