SKU:11-1259
Increase your Harley’s displacement with Motorshop’s 107 Inch Big Bore Twin Cam Cylinder Kit, featuring silver cylinders and a forged 10.5:1 piston kit. This kit requires case machining and fits a stock 4-inch stroke flywheel, designed for 1999–2006 Harley models in the FXST and FLST families.
Whether rebuilding or upgrading for higher performance, this big bore kit delivers increased displacement and stronger torque potential on eligible 1999–2006 Harley models.
TC-88 Big Bore cylinder kit includes forged 10.5:1 piston kit and silver cylinders. This kit requires case machining and fits a stock 4 inch stroke flywheel.Upgrade your Harley Davidson motorcycle with the Motorshop 107 Inch Big Bore Twin Cam Cylinder Kit, specifically designed to enhance performance on models from 1999 to 2006, including FXST and FLST series. This kit features high-quality cylinders with a 4-1/8 inch bore, providing increased displacement for more power and torque. The cylinders include sleeves with a thickness of.085 inches, constructed to deliver durability and reliable performance under demanding conditions. The outside diameter of the bottom portion of each sleeve measures 4.295 inches, ensuring a precise fit when installed with the recommended top end gasket kit.
The kit is made in Taiwan, ensuring quality manufacturing standards and consistency. It is recommended to pair this cylinder kit with the #15-1375 Top End Gasket Kit for optimal sealing and performance. The kit does not include gaskets, so be sure to order the necessary gasket set separately to complete your upgrade. Compatible with a range of Harley Davidson FXST and FLST models from 1999 through 2006, this cylinder kit is an ideal choice for owners seeking to improve engine capacity and overall motorcycle performance.
Along with the cylinders, consider accessory items such as the Cylinder Hold Down Nuts Tool (SKU: 16-0446) and the Cylinder Oil Tube Drain Tool Kit (SKU: 16-0911), which facilitate installation and maintenance. These tools support a smoother installation process and help maintain engine integrity over time. Whether you're rebuilding your engine or performing a performance upgrade, this big bore cylinder kit offers a straightforward solution to boost your Harley Davidson's power output and riding experience.
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