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S&S CYCLE 1200 cc Conversion Cylinder Kit for Harley Sportster Models with 11.2:1 Compression Ratio - Wrinkle Black (Part #910-0692)
Regular price $1,008.95 USD
Cylinder Kit - 1200 cc Conversion - 11.2:1 Compression Ratio - Wrinkle Black - XL
Upgrade your Harley Sportster with the S&S CYCLE 1200 cc Conversion Cylinder Kit, designed for models from 1986 to 2021. This kit transforms your existing 883 cc or 1200 cc engine into a high-performance 1250 cc powerhouse, delivering increased displacement and enhanced power. The forged pistons feature larger-than-stock valve pockets that accommodate valves up to 2.00 inches and have coated skirts with a measurement window and the S&S logo, ensuring durability and precision. Installation is straightforward as no machining or rebalancing is required, making it suitable for professional or DIY enthusiasts. The kit includes S&S 1250 cc pistons with rings and wristpins, S&S 3-9/16 inch bore cylinders, MLS head, base, and exhaust gaskets, along with assembly lube and detailed instructions. Built in the USA, this kit ensures quality and reliability for your Harley engine. Please note that this kit is incompatible with XR1200 models. For 883 models, the use of XL1200 cylinder heads is necessary to achieve the correct compression ratios. For optimal performance, S&S recommends CNC head porting, performance cams, and upgraded exhaust and intake systems to maximize horsepower and torque. This conversion kit provides a significant boost in engine efficiency and power, transforming your Harley Sportster into a more aggressive and responsive motorcycle, suitable for both street riding and performance upgrades.
Features:
- Converts 883 cc and 1200 cc Sportster models to 1250 cc displacement
- Forged pistons with larger valve pockets for up to 2.00 inch valves
- Coated piston skirts with measurement window and S&S logo for durability
- No machining or rebalancing required for installation
- Includes pistons, rings, wristpins, cylinders, gaskets, assembly lube, and instructions
- Made in the USA ensuring quality and reliability
- Designed specifically for Harley Sportster models from 1986 to 2021
- Requires XL1200 cylinder heads for 883 models to achieve proper compression
- Performance upgrades such as CNC porting and cams recommended for maximum results





