S&S Cycle 4.320" Cylinder Set

Elevate your motorcycle's performance with the S&S Cycle 4.320" cylinder set, engineered for enthusiasts seeking a significant engine upgrade. This premium bolt-on cylinder set offers a robust foundation for enhanced power and durability, designed to integrate seamlessly with your existing engine architecture. Perfect for custom builds, these unhoned cylinders provide the flexibility for precise finishing.

Description

Unleash the full potential of your engine with this high-quality S&S Cycle 4.320" cylinder set. Designed for a straightforward upgrade, these cylinders feature a stock bolt pattern, ensuring a direct and hassle-free installation process. The updated cylinder profile is meticulously engineered to optimize combustion efficiency and airflow, leading to improved power output and a more responsive ride. Each cylinder is precision-bored to a 4.320" diameter and intentionally left unhoned, allowing your engine builder to achieve the exact piston-to-wall clearance required for optimal performance and longevity. Crafted with a durable ductile liner, these cylinders are built to withstand the rigors of high-performance riding. The striking black finish with highlighted fins not only signifies a premium upgrade but also adds a custom aesthetic to your motorcycle's engine. Proudly made in the USA, this big bore cylinder kit represents S&S Cycle's commitment to quality and innovation in motorcycle cylinder upgrades.

Features & Highlights

• Effortless Bolt-On Installation: Designed for direct replacement, these S&S Cycle cylinders feature a stock bolt pattern, ensuring a straightforward and hassle-free upgrade process for compatible motorcycle engines.
• Enhanced Performance Profile: Benefit from an updated cylinder profile engineered to optimize combustion and airflow, contributing to improved engine efficiency and power output.
• Precision Bored for Custom Honing: Each cylinder is bored slightly under nominal size and left unhoned, providing a perfect foundation for your machinist to achieve exact piston clearance and optimal ring seal.
• Superior Ductile Liner: Equipped with a durable ductile liner, these cylinders offer exceptional wear resistance and longevity, protecting your engine's critical components under demanding conditions.
• Striking Black Finish with Highlighted Fins: Not only do these cylinders deliver performance, but their black finish with highlighted fins also adds a sleek, custom aesthetic to your engine's appearance.
• Proudly Made in the USA: Manufactured with precision and quality craftsmanship in the United States, guaranteeing reliability and adherence to high production standards.

Technical Specifications

• Product Name: Cylinder Set
• Type: Unhoned
• Units: Pair
• Bore Size: 4.320"
• Cylinder Bore Coating: Ductile Liner
• Color/Finish: Black, Highlighted Fins
• Vendor Part Number: 910-1005A

Important to Know

Professional Honing Required: These cylinders are bored slightly under nominal size and are not honed. Professional honing is required prior to installation to achieve the correct piston-to-wall clearance and ensure optimal engine performance and longevity.

Compatibility Note: This cylinder set is specifically designed for certain applications and is not compatible with CVO 121" engines. Please verify fitment for your specific motorcycle model before purchase.

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