CRF491 STEALTH Big Bore/Stroker

Motorcycle Honda CRF520

Please call to order 608-842-0680

Availability: In stock.



Quick Overview

CRF491 STEALTH Specifications:
Fits 2002-2008 CRF450R/X


Choose option:

We modify your cylinder

Exchange cylinder and crankshaft: $75.00

Installed and blueprinted: $500.00

“Bolt on” – Includes Cylinder and crankshaft: $261.00


Product Description

Bore: Yes

Stroke: Yes

Actual Displacement = 491.05cc

Engine Modifications Included:

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

Fuel Required: 91 – 110 octane – Options Available

Piston: CP or Wiseco Piston Max Power Extreme Coated – Options available

Crankshaft: Aftermarket stroker crankshaft

Crankcase/Head: No modification required

Notes: Crankshaft balance highly recommended – Add $250



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