Wiseco 4825M09050 Piston Kit - 0.50mm Oversize to 90.92mm, 9.5:1 Compression

Bore: 90.92mm
Compression: 9.5:1 Compression
Sizing: 0.50mm Oversize

SPECIFICATIONS.
Displacement: 437cc.
Bore - Standard: 90.00mm.
Bore - Actual: 90.50mm.
Bore - Oversize: 0.50.
Stroke: 68.00mm.
Compression Ratio - Actual: 9.5:1.
Dome Volume: +5.0cc.
Note: Cylinder boring required.
ITEM CONTENTS.
9050XX - 90.50MM RING SET.
CW19 - ROUND WIRE PIN LOCKS 19MM (PAIR).
S660 - PistonPin 19mm x 1.986in. NonChromed SW

All Wiseco Pistons are forged from high silicon, low expansion aluminum which offers superior strength, reduced weight, improved heat transfer, and longer life. Diamond turned finish from one of the many CNC computer controlled turning centers guarantees you a perfect finish with no size variation. Wiseco pistons can be installed in any of todays cylinder bore compositions. Wisecos state-of-the-art computerized manufacturing facility is dedicated to supplying both the high-perfomance racer and recreational enthusiast with the finest forged piston available in todays market place.

Vehicle Fitment:

1998-2004 Honda TRX450FE FourTrax Foreman ES
1998-2004 Honda TRX450FM FourTrax Foreman S