Description
NA-40011-4K Top End Kit 85.45/+1.00 11:1 Yam
Unlock the true potential of your engine with the NA-40011-4K Top End Kit. This high-performance kit is meticulously designed for those who demand excellence in their machine. Experience a noticeable upgrade in power, durability, and efficiency with every ride.
Key Features:
- Complete Top End Kit: Includes piston, rings, wrist pin, clips, top end bearing, and a comprehensive gasket kit for a hassle-free installation.
- MOS2 (Teflon/Molybdenum) Coated Skirts: Our advanced rolled-on application process creates a bond that is 10 times stronger than traditional spray coatings, ensuring superior heat transfer and reduced friction to eliminate cold seizures.
- Machined Smooth Heads: Designed to reflect combustion heat and minimize carbon buildup, these heads can increase horsepower and fuel economy by up to 6%, enhancing your overall riding experience.
- Anodized Domes: With increased heat resistance and durability, our anodized pistons are 75% stronger than non-anodized options, making them a perfect choice for performance enthusiasts.
- Hypereutectic Casting Process: This cutting-edge process features higher silicon content for reduced expansion rates and additional wear resistance, ensuring your engine can withstand higher cylinder temperatures.
Why Choose the NA-40011-4K Top End Kit?
This top end kit is not just an upgrade; it’s a transformation. Whether you’re racing or just enjoying a ride, elevate your engine’s performance with components that are engineered for reliability and efficiency. Maximize your engine’s potential and get ready to feel the difference!






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