Increase the displacement of your X-Wedge engine with these bolt-on cylinder and piston kits. A 1/4" bore increase will take an X121 to X128 and an X117 to X132! No changes to the crankcases or flywheels are required. Bolt-on Proven Performance® from S&S®! BENEFITS: Bolt-on performance. Increase displacement without crankcase modifications. Fits all X-Wedge® engines.
All piston sets are for two pistons and include rings, wristpin, and clips.
Due to piston coating, piston measurements are not reliable.
Bore cylinders to nominal diameter +/- .0005" for correct clearance.