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Old Feb 16, 2008 | 05:37 PM
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Yell88CRXsi
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From: Nonya (hint: VaBch)
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Default Re: question about bore size on my gsr

Except for the B20's, the stock bore of all B series is 81mm.


If you are buying aftermarket pistons then it would be smart to have a machine shop to check/bore your new pistons to the bores.

Last edited by Yell88CRXsi; Feb 16, 2008 at 05:39 PM.