Honda 400EX 400X 88mm Big Bore Kit +3 Cylinder Piston 426cc Upper Assembly Parts

12100-KCY-670, 12191-KCY-672, 13011-KCY-670, 13101-KCY-670, 90601-KA5-000, 13111-KCY-670, 12100-HN1-A70, 12191-KCY-672, 12251-HN1-003, 12391-KCY-671, 14560-KCW-851, 12100-HN1-A70, 12191-KCY-672, 13011-KCY-670, 12100-KCY-670, 4606M08800, C7826, 71016-4, 12191-KCY-673, 13011-KCY-670, 90601-KA5-000, 13103-KCY-67013111-KCY-670, 12251-HN1-003, 12209-KL4-005, 4040, 4606M08700, 4606M08800, 4667M08900, 808829, 808894, 8604DA, H0402027S, M2033

Works on all Honda 400EX, 400X, and XR400R models and years

• 88mm heavy-duty big bore cylinder
• 88mm big bore Wiseco or Wossner forged piston
• Nitrite-coated piston rings
• Chrome wrist pin
• Circlips
• Cometic big bore top-end gasket kit
• MLS big bore head gasket
• Talon TITANIUM cylinder head stud kit - LIFETIME WARRANTY*
• NGK spark plug
• No case or head mods required
• Runs on pump or race gas
• 1-year warranty on the complete kit, used and new parts*

BPRATV - The Best Parts. The Best Performance. The Best Price.