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07-22-2008, 8:14 PM bobttroll Joined on 06-15-2007 Chicago Posts 37 Any overbore cx650's? Has anyone ever overbore there cx650? I was wondering if it would be possible to overbore the cylinders to make some more displacement? Maybe a stroker? How many cc's do you think we could get out of these engines?    Report

07-26-2008, 12:20 AM trev_h Joined on 09-11-2006 stafford, United Kingdom Posts 113 Re: Any overbore cx650's? Hi, I once saw a 650 fitted with a piston/ liner sleeve kit ( possibly made by Wiseco) which took it out to 820cc. Whether this conversion still exsists I coundn't say but I always considered the 650 stretched handling the output it has.  If you were to bore it out yourself the problem is getting pistons with the valve cutouts at 22 degrees to the line of the gudgeon pin (little end) cx 650/500c special, 78 500z, 86 cx 400    Report

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