HARLEY SPORTSTER 883 TO 1200CC 1986 – 2019 SILVER S&S CYCLE BIG BORE KIT 910-0688

Harley Sportster 1200cc | The S&S Cycle Big Bore Kit (Part #910-0688) for Harley-Davidson Sportster models allows for a significant performance upgrade by converting an 883cc engine to a 1200cc displacement. This kit fits 1986–2019 Sportster models, offering increased power and torque, along with a straightforward installation process.

Features and Benefits | Buy Harley Sportster 1200cc Online

1. Big Bore Kit Specifications:
   • Engine Conversion: Increases the displacement from 883cc to 1200cc, providing a noticeable boost in horsepower and torque.
   • Cylinder Finish: The kit features silver powder-coated cylinders that match the stock engine finish, maintaining a factory-like appearance.
   • Quality Materials: The components are made from high-quality materials to ensure durability and long-lasting performance.
2. Compatibility:
   • Model Years: Suitable for 1986–2019 Harley-Davidson Sportster 883 models, including Iron 883, SuperLow, and other variants.
   • Bolt-On Design: This kit is designed for easy installation without machining or other extensive modifications, making it a bolt-on upgrade.
3. Performance Enhancements:
   • Increased Power: By enlarging the engine’s displacement, the kit provides more low-end torque and higher overall horsepower, significantly improving acceleration and overall rideability.
   • Better Throttle Response: The conversion improves throttle response and enhances the bike’s ability to handle higher speeds and loads.
4. Components Included:
   • Cylinders: Silver powder-coated cylinders sized for 1200cc displacement.
   • Pistons and Rings: High-quality pistons and rings are included, designed to provide an optimal fit and seal.
   • Gaskets: Necessary gaskets are typically included to ensure a proper seal and prevent oil leaks.
5. Installation Considerations:
   • Skill Level: Although it is a bolt-on kit, a moderate level of mechanical skill is required, as the installation involves disassembling the top end of the engine.
   • Tuning: After installation, carburetor or EFI tuning may be required to optimize the engine’s performance with the increased displacement.
   • Break-In Period: It is crucial to follow the manufacturer’s recommendations for the break-in procedure to ensure the longevity and proper function of the new components.

The S&S Cycle Big Bore Kit is a popular choice for Sportster owners looking to boost their bike’s performance while retaining reliability.

Silver powdercoat finish. Riders with 883cc engines can satisfy piston envy quickly and easily with the 883-1200 cylinder and piston conversion kit. Boost any 883cc Harley-Davidson Sportster to 1200cc. No machine shop? No problem, no machining is needed. Don’t want to rebalance your stock 883cc flywheels? You don’t need to since these pistons weigh the same as stock 883 pistons. Cylinder head modification is also not needed. The dished piston dome keeps compression down to a streetable 9.4:1 with stock 883cc heads. Installing this kit takes the same time as replacing a stock top end. It’s just more fun when you’re done. S&S Cycle part number 910-0688

Features and Benefits:
Increase displacement from 883cc to 1200cc
Save time because pistons are already fit to the cylinders- Ready to assemble out of the box!
No machining
No rebalancing
No cylinder head modifications
Durable powdercoat finish

Kit Contents:
S&S 883-1200cc conversion pistons w/rings and wristpins
S&S 31/2″ Bore Cylinders
Cylinder head, base, and exhaust gaskets
Assembly lube
Instructions