Yamaha YFZ450R 98mm 478cc Big Bore Top End Kit CP Piston Cometic 13.5:1 EFI NEW! RZR XP4 Precision Fit – Engineered to

Precision Fit – Engineered to match OEM specifications

2017 RZR® 900 EPS XC Edition

these valves are OEM-size and are dimensionally identical to stock

This Athena big bore kit installs without any crankcase modification

This Kibblewhite Head Stud Kit Heavy Duty Aftermarket is the ultimate upgrade to prevent head gasket issues and ensure unparalleled reliability

Yamaha YFZ450R 98mm 478cc Big Bore Top End Kit CP Piston Cometic 13.5:1 EFI NEW! RZR XP4 Precision Fit – Engineered toYamaha YFZ450R 478cc big bore top end kit with 98mm CP piston, Nikasil cylinder and Cometic gasket for race ready power. ,21003 1, M1009, C3178, C3178 EST, 20003, M1006, C7908, 71014 5, 2S2 11181 00 00, 3VD 14613 01 00, 94591 57120 00, 2S2 11311 30 00, 4FM 12213 00, 5TG 11631 12 00, 5TG 11633 10 00, 5TG 11631 21 00, M1002, 93450 22027 00, 2S2 11351 00 00 Yamaha YFZ450R YFZ450X 98mm 478cc Big Bore Top End Kit CP Cometic 13. 5: 1 Product Description