Description
NA-40003-2K Top End Kit OEM Style 66.42/+0.50 6.6:1 Yam
Revitalize your engine’s performance with the NA-40003-2K Top End Kit, specially designed to meet OEM specifications while enhancing functionality and durability. This comprehensive kit provides all the essential components needed for an effective top-end rebuild, ensuring your engine runs smoothly and efficiently.
Key Features:
- Complete Top End Kit: Includes piston, rings, wrist pin, clips, top end bearing, and gasket kit for a hassle-free installation.
- MOS2 Coated Skirts: Features a state-of-the-art rolled on application process that creates a bond 10 times stronger than traditional spray coatings. This innovation increases heat transfer, reduces friction, and minimizes the risk of cold seizures.
- Machined Smooth Heads: Designed to reflect combustion heat and reduce carbon buildup, thereby protecting the piston tops and potentially increasing horsepower and fuel economy by up to 6%.
- Anodized Domes: Enhances heat resistance and structural integrity; anodized pistons are 75% stronger, providing added durability for demanding performance applications.
- Hypereutectic Casting Process: Employs a higher silicon content, which reduces expansion rates and enhances wear resistance. This process also allows the pistons to withstand elevated cylinder temperatures.
Why Choose the NA-40003-2K Top End Kit?
Engineered for performance enthusiasts, this kit not only elevates your engine’s efficiency but also extends its lifespan. With features that enhance durability and reduce wear, the NA-40003-2K is the ideal choice for those looking to gain a competitive edge on the road.






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