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Allen head Titanium studs (Grade 5 Titanium Alloy)
* Due to the nature of high performance and racing applications
Includes thrust washers when applicable only
Compatible with OEM and most aftermarket valves and valve springs
Enough lift to use any camshafts made
YFZ450R YFZ 450R Wiseco Pump Piston 98mm BIG BORE Cylinder Top End Rebuild Kit YZFR3 Allen head Titanium studs (GradeUpgrade your Yamaha YFZ450R or YFZ450X with a complete 98mm Wiseco Big Bore top end rebuild kit. Includes cylinder, piston, gasket kit, valve seals, and spark plug. Fits 20092024 EFI models. YFZ450R 98mm Wiseco Pump Gas Big Bore Cylinder & Top End Rebuild Kit Unleash BIG BORE Performance This complete top end rebuild package features a premium Wiseco 98mm Pump Gas Big Bore Piston and BPRATV Nikasil Cylinder, delivering exceptional reliability and