Honda XR400 Top End Rebuild 89mm Wiseco Piston 440 Big Bore Cylinder Gasket Kit

  

Brand New 440 Big Bore (89mm) Top End Rebuild Kit. Includes a new 89mm aftermarket cylinder. Includes a new 89mm Wiseco 11:1 piston kit (piston, rings, wrist pin, circlips). Includes a Namura top end gasket kit.

Wiseco Pistons are forged from high silicon, low expansion aluminum which offers superior strength, reduced weight, improved heat transfer, and longer life. Compatible with all OEM components.