I don't know what you got.all sv's have stock valves same size. Zoran Vujasinovic Twin Works Factory 775-786-4881 www.twfracing.com ----- Original Message ----- From: <srobertson at ssimicro.com> To: "Suzuki SV650 Mailing List" <sv650 at micapeak.com> Sent: Monday, May 26, 2008 1:29 PM Subject: Re: Ideas, suggestions? No, stock valves is this motor with oversize valves?