YZ491F Stealth Big Bore/Stroker

Motorcycles Yamaha YZ491F

Please call to order 608-842-0680

Availability: In stock.



Quick Overview

YZ491F STEALTH Specifications:
Fits 2003-2009 YZ450F


Choose option:

We modify your cylinder

Installed and Blueprinted: $ 500.00


Product Description

Bore: Yes Stroke: Yes Actual Displacement = 490.68cc

Engine Modifications Included:

Cylinder: OEM Cylinder bored and plated with Ceramic Nickel Bore coating

Fuel Required: 91 – 110 octane – Options Available

Piston/Crankshaft: Wiseco Piston – Max Power Extreme Coated / Aftermarket Stroker Crank balanced

Head: No modification required

Crankcase: No modification required



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