NA-40004-6K Top End Kit 101.47/+1.50 11:1 Yam
NA-40004-6K Top End Kit 101.47/+1.50 11:1 Yam
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NA-40004-6K Top End Kit 101.47/+1.50 11:1 Yam
Elevate your engine's performance with the NA-40004-6K Top End Kit, meticulously designed for enthusiasts who demand the best. This comprehensive kit is your gateway to unlocking enhanced power, efficiency, and durability in your ride.
Key Features:
- Complete Kit Components: Includes everything you need for a top-end rebuild: piston, rings, wrist pin, clips, top end bearing, and a gasket kit.
- MOS2 Coated Skirts: Our unique Teflon/Molybdenum coating process bonds ten times stronger than traditional coatings, ensuring superior heat transfer, reduced friction, and minimized risk of cold seizures.
- Machined Smooth Heads: Designed to reflect combustion heat and reduce carbon buildup, these heads can boost horsepower and enhance fuel economy by up to 6%.
- Anodized Domes: Provides increased heat resistance and durability; our anodized pistons are 75% stronger than their non-anodized counterparts, offering unmatched reliability.
- Hypereutectic Casting Process: Higher silicon content leads to reduced expansion rates and additional wear resistance, enabling the pistons to withstand higher cylinder temperatures.
Why Choose the NA-40004-6K Top End Kit?
Designed for those who refuse to compromise, this top end kit not only enhances performance but also extends the life of your engine. Invest in superior engineering that brings out the best in your machine.
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

