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S&S Cycle 1200 cc Conversion Cylinder Kit for Harley-Davidson Sportster Models (Part 910-0689)
Regular price $1,008.95 USD
Cylinder Kit - 1200 cc Conversion - 10.3:1 Compression Ratio - Silver - XL Upgrade your Harley-Davidson Sportster with the S&S Cycle...
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Cylinder Kit - 1200 cc Conversion - 10.3:1 Compression Ratio - Silver - XL
Upgrade your Harley-Davidson Sportster with the S&S Cycle 1200 cc Conversion Cylinder Kit, designed to enhance performance and reliability. This kit is compatible with 1986 through 2021 models, converting 883 cc engines to a robust 1250 cc displacement for increased power and torque. The kit features forged pistons with larger valve pockets capable of accepting up to 2.00-inch valves, ensuring improved airflow and combustion efficiency. Coated piston skirts with a measurement window and S&S logo provide durability and easy inspection, all without the need for machining or rebalancing, simplifying installation for experienced technicians and enthusiasts alike. The set includes S&S 1250 cc pistons with rings and wristpins, along with 3-9/16-inch bore cylinders, MLS (Multi-Layer Steel) head gaskets, base and exhaust gaskets, assembly lube, and detailed instructions, making it a comprehensive upgrade package. Crafted in the USA, this kit is engineered for durability and performance, with the potential for further enhancement through CNC head porting, performance cams, and exhaust and intake upgrades. Please note that this kit does not work with XR1200 models and that 883 models will require XL1200 cylinder heads to achieve proper compression ratios, ensuring optimal engine performance and longevity.
Features:
- Converts 883 cc and 1200 cc Sportster models to 1250 cc displacement for increased horsepower and torque
- Forged pistons with larger valve pockets to accommodate up to 2.00-inch valves for enhanced airflow
- Piston skirts coated with measurement window and S&S logo for durability and easy inspection
- No machining or rebalancing required during installation for user convenience
- Includes all necessary components: pistons, rings, wristpins, cylinders, gaskets, assembly lube, and instructions
- Designed and manufactured in the USA for quality assurance
- Compatible with Harley-Davidson Sportster models from 1986 to 2021, excluding XR1200
- Requires XL1200 cylinder heads for 883 models to achieve correct compression ratios
- Optimizable with CNC head porting, performance cams, and upgraded exhaust and intake systems for maximum performance
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