7841 Morrison St. · Morrisonville WI 53571 · 608-842-0680

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YFZ 491 Stealth Big Bore/Stroker

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YFZ 491 Stealth Big Bore/Stroker

Please call to order 608-842-0680

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Availability: In stock.

$970.00

Quick Overview

YFZ 491 STEALTH Specifications:

Fits 2004-2008 YFZ 450

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$970.00
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Product Description

Bore: Yes
Stroke: Yes
Actual Displacement = 490.68cc

Engine Modifications Included:
Cylinder: OEM Cylinder bored and plated with Apticote 2000 Ceramic coating
Fuel Required: 91 - 110 octane - Options Available
Piston/Crankshaft: Wiseco or CP Piston - Max Power Extreme Coated / Aftermarket Stroker Crank - Balance recommended - Add: $250
Head: No modification required
Crankcase: No modification required

Notes: This kit is a real diamond in the rough. The first time we hit the track with this kit it really got our attention. It revs out super fast and pulls like a much bigger engine than what it is. It uses a +3mm Hot Rods crankshaft and a Max Power Apticote 2000 plated OEM 97mm cylinder. We highly reccomend getting the cranked balanced or your hands will fall asleep. We also provide a full botom end gasket and seal kit. It is basically a total rebuild kit less main bearings (and we can get you those also for a bit more) It comes in multiple compression ratios and uses either a CP or Wiesco piston - Your choice. If you got a tired YFZ, limited funds, and some mechnical skill, this kit is a pretty sweet deal that really does the trick.
 


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