2002 Suzuki DRZ-400E Cylinder Head
 

All,
I have a 2002 Suzuki DRZ-400E and I'm trying to see if anyone has a new or used cylinder head that they would sell on the cheap side if possible. I'm rebuilding this bike for a friend and it's been nothing but problems. A machine ship put new valve guides in it and the timing went 180 out and it bent the exhaust valves and broke the valve guides again. When they went to put brass ones back in it, the hole is slightly too big now and they don't know where to get oversized valve guides either for this model bike, so if anyone knows the answer to that, please chime in as well. Thanks, Scott W.