Description
Upgrade your Harley-Davidson Evolution™ Big Twin with the Revolution Performance 92" Big Bore Cylinder Kit. This true bolt-on kit features aerospace-grade all-aluminum cylinders with nickel-silicon-carbide (NSC) electroplated bores for superior performance. No sleeving required, allowing for larger bore sizes, reduced friction, increased horsepower, lower operating temperatures, and enhanced durability. The kit includes custom forged pistons with high tension rings, specifically designed for NSC cylinders, and a complete head/base gasket set. Fits ’84-’99 Evolution Big Twin models with a 4-5/8" stroke crankshaft. Made in the USA.
Kit Includes:
- 2x Cylinders
- 2x Piston Kits
- Head and Base Gasket Set
Notes: Replacement head and base gasket sets available separately. For replacement pistons and rings, see Revolution Performance Big Bore Piston Kits. Upgraded cylinder studs and head bolts are recommended.
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