S&S Cycle 4.320" Unhoned Cylinder Set for Motorcycles

Elevate your motorcycle's performance and prepare for a precision build with the S&S Cycle 4.320" Unhoned Cylinder Set. Designed for enthusiasts and professional builders, this cylinder set provides a robust foundation for engine upgrades, combining S&S Cycle's renowned quality with a flexible, ready-to-customize approach.

Description

The S&S Cycle Cylinder Set offers a direct bolt-on solution for a significant engine enhancement. Crafted with a stock bolt pattern, these motorcycle cylinder kits ensure seamless integration with your existing engine components, making installation straightforward for compatible models. Each cylinder features an updated profile, engineered by S&S Cycle to optimize performance and durability, providing a reliable core for your power plant. The distinctive black finish with non-highlighted fins adds a sleek, aggressive aesthetic to your motorcycle's engine. Built in the USA, this cylinder set exemplifies superior American craftsmanship and quality. Crucially, these big bore cylinders are supplied bored slightly under their nominal 4.320" size and are delivered unhoned, allowing for precise final honing to match your specific piston and clearance requirements, ensuring optimal engine longevity and performance. The bores are equipped with durable ductile liners, providing excellent wear resistance and heat dissipation for sustained high-performance operation, making this an ideal unhoned cylinder pair for custom builds.

Features & Highlights

• Direct Bolt-On Design: Engineered for easy installation with a stock bolt pattern, ensuring a hassle-free upgrade process for compatible engines.
• Optimized Cylinder Profile: Features an updated internal and external profile, designed by S&S Cycle for enhanced strength, improved heat management, and superior overall engine performance.
• Precision Unhoned Bore: Supplied bored slightly under the 4.320" nominal size and unhoned, allowing engine builders to achieve exact piston-to-wall clearances for custom, high-performance applications.
• Durable Ductile Liners: Incorporates robust ductile iron cylinder liners, providing exceptional wear resistance and extended service life under demanding conditions.
• Premium American Craftsmanship: Proudly made in the USA, guaranteeing high-quality materials, meticulous manufacturing standards, and reliable performance.
• Sleek Black Finish: Finished in a classic black with non-highlighted fins, offering a clean, aggressive look that complements a wide range of motorcycle styles.

Technical Specifications

• Type: Unhoned
• Units: Pair
• Bore Size: 4.320"
• Color/Finish: Black, Non-Highlighted Fins
• Cylinder Bore Coating: Ductile Liner
• Vendor Part Number: 910-1006A

Important to Know

• These cylinders are bored slightly under nominal size and are supplied unhoned. Final honing is required to achieve proper piston-to-wall clearance.
• Not compatible with CVO 121" engines.
• Professional installation and engine assembly are highly recommended.

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