C7798,4811M10200,4966M10200,5KM-11310-00-00,80-82600,YF-11181-00-00,810852,191070043070,3YF-11351-00-00,3YF-11181-00-00,2C6-11603-00-00,93450-24028-00,3YF-11631-00-X0,3YF-11633-01-00,90201-102G9-00,90105-10649-00,90105-09648-00,C7798-EST,DPR-8EA90-00-00,3YF-11310-01-00,261528,261527,272149,M1016B,8507D200

Unlock the full power of your Yamaha 660 with this top-of-the-line Big Bore Top End Kit.

Squeeze every last ounce of power from your Yamaha 660 with this premium top end kit. The large 102mm +2mm bore size Nikasil-plated cylinder walls provide unmatched heat transfer and wear resistance. This kit is engineered to handle the demands of high-performance riding, ensuring your Yamaha 660 can tackle the toughest terrain with confidence.

Fits Yamaha Raptor 660 / Rhino 660 / Grizzly 660 – All Years and Models

Compatible with any 102mm Big BoreYamaha 660 Piston Kit (Not Included)

Drop In Ready. No case modification required.

Key Features:

• 102mm +2mm big bore cylinder with Nikasil plating for increased lubricity and reduced friction
• Nikasil plating dissipates heat more effectively for a cooler-running engine
• Nikasil is harder than steel for long-lasting durability and performance
• Lightweight design is much more cost-effective than a traditional steel-sleeved cylinder
• Can be re-plated repeatedly without boring or re-sleeving
• NO MORE DROPPED SLEEVES!

Kit Includes:

• 102mm +2mm Big Bore Cylinder with Nickel / Carbide (Nikasil Plated) Plating
• Cometic Top End Gasket Kit with 102mm with aBig BoreMLS Head Gasket

The Nikasil plating on this big bore cylinder kit delivers unparalleled performance and longevity. The ultra-smooth, low-friction surface allows your Yamaha YFM660 to run more efficiently, with less heat buildup for improved reliability. And because the Nikasil can be re-plated over and over, you’ll enjoy the benefits of this top end upgrade for years to come without the need for costly cylinder work.

– The Best Parts. The Best Performance. The Best Price. BRAPPPPPPPPPP!