NA-50011-4K Top End Kit 97.57/+1.00 11:1 Pol
NA-50011-4K Top End Kit 97.57/+1.00 11:1 Pol
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NA-50011-4K Top End Kit 97.57/+1.00 11:1 Pol
Elevate your engine's performance with the NA-50011-4K Top End Kit, designed for enthusiasts who demand the best in quality and functionality. This comprehensive kit provides everything you need for a complete top-end overhaul, ensuring your engine runs smoother and more efficiently.
Features:
- Complete Top End Kit: Includes piston, rings, wrist pin, clips, top end bearing, and a 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-on coatings, promoting enhanced heat transfer and friction reduction. This technology helps to eliminate cold seizures, ensuring peak performance in all conditions.
- Machined Smooth Heads: Designed to reflect combustion heat and reduce carbon buildup, these heads protect the top of the piston while potentially increasing horsepower and fuel economy by up to 6%.
- Anodized Domes: Our pistons feature anodized domes for increased heat resistance and durability. Anodized pistons are 75% stronger than their non-anodized counterparts, giving you peace of mind in demanding applications.
- Hypereutectic Casting Process: With higher silicon content, this process results in reduced expansion rates and enhanced wear resistance. Additionally, it allows the pistons to withstand higher cylinder temperatures, increasing the longevity of your engine.
Experience the difference with the NA-50011-4K Top End Kit and unlock your engine's full potential!
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.

