Wiseco PK1031 Top End Kit - Standard Bore 85.00mm, 10:1 Compression

Bore: 85.00mm
Compression: 10:1 Compression
Sizing: Standard Bore

SPECIFICATIONS.
Displacement: 397cc.
Bore - Standard: 85.00mm.
Bore - Actual: 85.00mm.
Bore - Oversize: STD.
Stroke: 70.00mm.
Cylinders: 1.
Compression Ratio - Actual: 10:1.
ITEM CONTENTS.
3347XC - 85.00 mm Ring Set.
4606M08500 - Honda XR/TRX400EX/TRX400X 10:1 CR.
CW20 - ROUND WIRE PIN LOCKS 20MM (PAIR).
Gasket.
Gasket Kit.
S520 - PistonPin 20mm x 2.362in. NonChromed TW.
W5514 - TopEndGsktKit XR/TRX400 96-05/99-08.

Contains all the necessary components for overboring or rebuilding your top end. Feature forged pistons, rings, wrist pins, circlips and top end gasket set.

Vehicle Fitment:

1999-2008 Honda TRX400EX Sportrax
2009 Honda TRX400X
2012-2014 Honda TRX400X
1996-2004 Honda XR400R