Revolution Performance LLC 85" Big Bore Aluminum Cylinder Kit for Harley Big Twin RP201-203W

Product type: Big Bore Kits

SKU : 0931-1055

Regular price $1,354.95 USD

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Cylinder Kit - 85" - Big Bore - Natural Silver - Evolution Big Twin The Revolution Performance LLC 85-inch Big Bore Aluminum...

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Cylinder Kit - 85" - Big Bore - Natural Silver - Evolution Big Twin

The Revolution Performance LLC 85-inch Big Bore Aluminum Cylinder Kit (RP201-203W) is designed for enthusiasts seeking increased power and durability for their Harley Big Twin engines. Crafted from aerospace-grade all-aluminum with nickel-silicon-carbide (NSC) electroplated bores, this kit eliminates the need for sleeves, enabling larger bore sizes while reducing friction. This results in higher horsepower potential, lower operating temperatures, and an extended engine lifespan. The true bolt-on design ensures a straightforward installation process with no machine work required, making it an ideal upgrade for rebuilds or performance enhancements. The kit includes custom forged pistons with high tension rings specifically engineered for the NSC cylinders, along with a head and base gasket set for a complete installation. Made in the USA, this kit offers reliable performance and quality construction. For replacement pistons and rings, refer to Revolution Performance Big Bore Piston Kits. Upgraded cylinder studs and head bolts are recommended to ensure optimal engine integrity and performance.

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