F23 bore is 86.0mm I don't think F22 pistons will work, but I'm not 100% about the F22s bore.


If you're building the F23, what are you doing for a cam? I've been looking into one for mine. I'm considering a regrind pretty seriously. I've just heard too many customer service nightmares about gude to think about them. you might be interested in this thread http://www.honda-tech.com/zerothread?id=608846