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Upgrade your Harley-Davidson Evolution Big Twin engine with the Revolution Performance LLC 92" Big Bore Aluminum Cylinder Kit. Crafted from aerospace-grade all-aluminum, these cylinders feature nickel-silicon-carbide (NSC) electroplated bores, eliminating the need for sleeving and enabling larger bore sizes. This design results in less friction, increased horsepower, lower operating temperatures, and a longer lifespan for your engine. The kit is a true bolt-on solution that requires no machine work, making installation straightforward and efficient. It includes custom forged pistons with high-tension rings specifically designed to complement the NSC cylinders, ensuring optimal performance and durability. The set also comes with a head gasket and base gasket, providing a complete sealing solution for your upgrade. Made in the USA, this kit is built for enthusiasts seeking significant power gains with reliable, high-quality components. Replacement head and base gasket sets are available separately, and for piston and ring replacements, Revolution Performance offers dedicated Big Bore Piston Kits. For added security and performance, it’s recommended to upgrade cylinder studs and head bolts when installing this kit. Whether you're looking to increase horsepower or improve engine longevity, this big bore kit provides a professional-grade upgrade that enhances your motorcycle’s performance and reliability.
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