High compression barrel and piston kit for 2000cc Type 4 engines with flat top slipper skirt performance pistons. These are high compression pistons as originally used only on the Porsche 914 versions of the engine, but can be used as a performance upgrade on Baywindow and T25 CJ / CU / GD / GE / CV engines. The kit includes barrels, pistons, rings, gudgeon pins and clips.