Wiseco PK1032 Top End Kit - 0.50mm Oversize to 85.50mm, 10:1 Compression

Generally ships to addresses in the contiguous United States the same business day if ordered by 12:15PM Central Time!

Bore: 85.50mm
Compression: 10:1 Compression
Sizing: 0.50mm Oversize

Contains all the necessary components for overboring or rebuilding your top end.
Feature forged pistons, rings, wrist pins, circlips and top end gasket set.
SPECIFICATIONS.
Displacement: 402cc.
Bore - Standard: 85.00mm.
Bore - Actual: 85.50mm.
Bore - Oversize: 0.50mm.
Stroke: 70.00mm.
Cylinders: 1.
Compression Ratio - Actual: 10:1.
Note: Cylinder boring required.
ITEM CONTENTS.
4606M08550 - Honda XR/TRX400EX/TRX400X 10:1 CR.
8550XX - 85.50MM RING SET.
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
Honda TRX400EX Sportrax 1999-2008
Honda TRX400X 2012-2014
Honda TRX400X 2009
Honda XR400R 1996-2004