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Enhance your Harley-Davidson engine with the S&S Cycle 4-Inch Big Bore Sidewinder Cylinder Kit, designed specifically for 100 cubic inch applications. This bolt-in kit allows for straightforward installation without the need for machining, balancing, or splitting the crankcases, making it ideal for installation with the engine still mounted in the frame. Crafted from cast ductile iron sleeves embedded in cast aluminum, this design ensures superior heat transfer and durability under demanding conditions. The kit boosts 88-inch engines to 100 inches, while 96-inch and 103-inch engines are increased to 110 inches, providing significant performance gains. The setup features a compression ratio of 10.5:1 when used with stock 85cc heads, resulting in a reliable, streetable engine with excellent responsiveness to performance cams. The complete kit includes cylinders, forged pistons, rings, piston pins, clips, and gaskets, offering everything needed for a comprehensive upgrade. Please note, this kit is not compatible with S&S 79cc heads, ensuring optimal performance with the specified components. Overall, the S&S Cycle 4-Inch Big Bore Sidewinder Cylinder Kit is an excellent choice for riders seeking enhanced power, reliable operation, and straightforward installation for their Harley-Davidson motor.
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