Honda 400EX XR400R Cylinder Head Assembly Top End Rebuild Kit Valves Rocker Arms

Complete Top End Rebuild Kit with New Assembled Cylinder Head

• NEW after market 85mm, stock bore cylinder
• Wiseco or Wossner forged piston**
• Nitrite coated piston rings
• Chrome wristpin
• Circlips
• Assembled cylinder head with valves, valve springs, rocker arms (NO CAM)
• Talon Titanium head stud kit
• Top end gasket kit 
• HD cam chain conversion
• NGK Spark Plug
• 1 year warranty*
• Compatible with all Honda 400X, XR400R, and 400EX models and years
• Runs on pump or race gas

This kit is perfect for Honda 400X and 400EX owners looking to rebuild a worn-out top end.  With robust forged internals, upgraded head studs, and improved lubrication, this kit will breathe new high-revving life into your engine.  Rebuild your top end right the first time with premium components that outperform and outlast stock parts.

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12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 13011-KCY-670, 90601-KA5-000, 13103-KCY-670, 13111-KCY-670, 12251-HN1-003, 12209-KL4-005, C7825, 808894, 822278, 4040, WPC131A, WPC131B, CBK0016, TBK0012, K014, 8604DA