Upgrade your motorcycle's performance with the S&S Cycle Performance Replacement Head. This fully assembled head is designed to optimize airflow and enhance the power of your engine. Experience improved throttle response and overall performance with this high-quality replacement head. Description The S&S Cycle Performance Replacement Head is engineered for enthusiasts seeking a significant boost in engine performance. Featuring stainless steel valves and high-lift springs, this head is optimized for smaller displacement engines, specifically around 82cc. The advanced port design maximizes flow while maintaining crucial velocity, resulting in enhanced power and efficiency. Compatible with stock-style flat-top pistons, this head is also set up for .585" maximum lift. Its EFI-compatible design ensures seamless integration with modern fuel injection systems. This cylinder head delivers enhanced performance and reliability. Manufactured in the USA to the highest standards, this head offers a direct replacement that improves upon the stock performance. Installation is straightforward for experienced mechanics, unlocking your engine's full potential. Features & highlights Experience enhanced engine performance with optimized airflow and increased power. Stainless steel valves and high-lift springs ensure durability and reliability under high-stress conditions. Designed for smaller displacement engines (82cc) to maximize efficiency and responsiveness. Compatible with stock-style flat-top pistons for easy integration. EFI compatible, ensuring seamless performance with fuel-injected motorcycles. Proudly made in the USA, guaranteeing top-quality craftsmanship. Technical specifications Brand: S&S Cycle Part Number: 106-4570 Color/Finish: Wrinkle Black, Powder-Coated Displacement: 82cc Material: Aluminum Type: Replacement Cylinder Head Kit Units: Pair Important to know Intake manifold and gasket kits are sold separately. Professional installation is recommended to ensure proper fitment and performance.