SKU:11-2228
Upgrade your Harley Davidson XL engine with the Keith Black 272.STD 883cc Conversion Piston Set, designed for 1986–1995 XL Evolution models. These standard-size pistons fit a 3.498-inch bore and are configured for a 10.0:1 compression ratio. Crafted from hypereutectic alloy and cast in a permanent steel mold, they deliver precise fit and durable performance.
Fitment: Harley Davidson XL 1986–2026. Part number KB272.STD.
Note: Proper break-in procedures are essential; run the engine at moderate speeds for at least 500 miles to ensure optimal piston and ring seating.
Keith Black dish piston set is standard size with a 10.0:1 compression ratio for 1986-up XL Evolution models.Upgrade your Harley Davidson XL engine with the Keith Black 272.STD 883cc Conversion Piston Set, designed for models from 1986 to 1995. Crafted with high-performance hypereutectic alloy, these pistons are cast in a permanent steel mold to ensure strength, durability, and precise fitment. The standard size pistons are compatible with a 3.498-inch bore and feature a 9:1 compression ratio, optimized for reliable power delivery and fuel efficiency. The low heat transfer alloy helps keep the piston skirts cool, minimizing expansion and enhancing longevity. This results in improved combustion efficiency, increased power output, and better fuel economy, especially suited for riders seeking performance upgrades. The pistons incorporate high ring placement, which reduces detonation and raises the top ring temperature, further contributing to engine stability and performance. Designed for easy installation, these pistons are ideal for rebuilding or upgrading your existing engine. Note that 2009-UP XL 883 cylinders cannot be overbored to 1200cc, and separate 1200cc cylinders are required for that conversion. Proper break-in procedures are essential; run the engine at moderate speeds for at least 500 miles, avoiding excessive low gear operation to ensure optimal piston and ring seating. For detailed installation instructions, refer to the Keith Black Conversion Piston Guide available online. This set includes essential accessory items such as a ring compressor kit, connecting rod clamping tools, and a piston ring grinder, facilitating a smooth installation process. Made in Mexico, this piston set is a reliable choice for performance-focused Harley Davidson enthusiasts looking to enhance their engine’s reliability and power.
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