thanks for the help guys....the bearing place told me they were special bearings and he didnt have them so i went to pompton honda near me and happen to notice the 400ex bearing were identical to my 450r wich they told me they had to order and couldnt get until next tuesday and after doing a complete piston, rings and top end i realy didnt wanna wait so i had the mechanic pull out a micrometer and turns out the 400ex bearings are identical but not labeled so.....but anyways everything turned out well and im finally all finished and ready to ride and prepare for unadilla.....thanks again