Black powder coated finish. Nothing beats cubic inches and this is the simplest way to flex Twin Cam muscles. Converts the stock 99-06 Twin Cams from 88" to 95" and also increases compression ratio somewhat. Easy to install without any machining or crankcase splitting. Flywheel re-balancing is not required. Cylinder kits contains two 95" (3-7/8" big bore) cylinders and a 95" pop-up piston set with a 5.3cc pop-up dome; which will give a slight compression ratio increase to approx. 9.7:1 with stock heads.