1999-2003 xcr 800 engine new rebuilt crank shop crankshaft true and indexed every 120 degrees crank cases have been machined to give. 002 preload on crankshaft bearings to make a ridged block, cylinders and cylinder heads have been on a flattening table to make all the surfaces flat, spi pistons rebuilt water pump new exhaust bellows. This is a high level build has 2000-2003 engine brackets