i have and 05 883 that was converted to a 1200 before it left the dealer. I now have 20000 on the bike and all of a sudden O have some major engine noises. iIbrough it to the HD dealer and the replaced the valve train including lifters and the oil pump which was all trashed. I saw the parts myself. After $2000 it still makes the same noise. I have tried to locate the noise with every tool known to man but just cannot seam to locate it. It sounds like bad lifters but louder. It over takes the very loud exhaust. Anybody have a clue???