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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9
built for higher RPMs and to last longer
14721-MEB-674
25:1 for 2004-2005 models with OEM stock crankshafts
Nitride-Coated Hi-Temp Ring Sets – improved sealing and longevity
Yamaha Grizzly 660 OEM Stock Replacement Kibblewhite Intake Exhaust Valves Seals BSA Rocket III built for higher RPMs andComplete Yamaha 660 valve refresh. Features 5 Kibblewhite Black Diamond stainless valves and high temp Red Viton seals. Outperforms OEM for race or trail. Kibblewhite Black Diamond Stainless Valve Kit Yamaha Raptor Rhino Grizzly 660 Race Proven Black Diamond Performance Upgrade your top end with the Kibblewhite Black Diamond Stainless Valve Kit designed for Yamaha 660 models. Featuring premium KPMI one piece stainless intake and exhaust valves with