SKU:11-2209
Keith Black KB263.080 piston set is a.080 oversize option for a 3.438 inch bore, delivering a 9.0:1 compression ratio for Harley Davidson FL models from 1941 to 1950.
Manufactured in Mexico, these pistons are engineered for durability and proper fitment in vintage Harley engines during rebuilds or restoration projects.
Break-in guidance is essential for longevity: run the engine at moderate speeds for at least 500 miles, and avoid excessive idling or running in low gears during this period. Follow the installation instructions online for correct assembly and optimal performance.
Pair this piston set with recommended accessories to simplify installation, such as the 80 inch Shovelhead Piston Ring Set.020, the Ring-O-Matic Ring Compressor Kit, and the Connecting Rod Clamping Tool.
Ideal for rebuilds and restorations, the KB263.080 aims to restore vintage Harley performance and reliability in the FL lineup of the era.
Keith Black 390 hypereutectic piston set is.080 oversize and is for 3.438 inch bore. Pistons have a compression of 9.0:1.The Keith Black KB263.080 piston set is designed specifically for classic Harley Davidson FL models from 1941 to 1950, providing reliable performance with a.080 oversize bore. Crafted in Mexico, these pistons are engineered to restore engine power and efficiency in vintage Harley Davidson motorcycles. Constructed with precision, the set ensures proper fitment and durability, making it an excellent choice for rebuild projects or restoring vintage engines to their original performance standards.
Proper break-in is crucial for optimal piston and ring longevity. It is recommended to run the engine at moderate speeds for at least 500 miles, avoiding excessive idling or running in low gears during this period. Following the detailed installation instructions available online ensures correct assembly and optimal performance. The set includes all necessary components for a complete piston replacement, simplifying the rebuild process.
Pair this piston set with suggested accessories such as the 80 inch Shovelhead Piston Ring Set.020 and essential tools like the Ring-O-Matic Ring Compressor Kit and Connecting Rod Clamping Tool. These accessories facilitate a smooth installation process and help achieve the best results in your rebuild. Whether you're restoring an authentic vintage Harley or improving your engine's performance, the Keith Black pistons offer quality and reliability for your project.
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