98″ Twin Cam Bolt-On Big Bore Kit w/Flat-Top Pistons – All Black

Experience the easiest and most reliable way to boost your engine’s power and torque with Revolution Performance bolt-on big bore kits. No need for modifications, these kits are designed for effortless installation. – Fits 1999-2006 Twin Cam motorcycles – Aerospace-grade all-aluminum cylinder with Nickel-Silicon-Carbide (NSC) electroplated bore – No sleeving allows for larger bore sizes – NSC-plated cylinders have less friction for increased horsepower, lower engine temperatures and a longer lifespan – Includes pair of all-aluminum NSC-coated bore cylinders, custom-forged pistons with high-tension rings specifically designed for SNC cylinders and a head/base gasket set – Replacement gasket sets available separately – Upgraded cylinder studs and head bolts recommended – Made in the U.S.A.