If you don't mind my asking, what was the total damage? I know when I had a head replaced under warranty, also due to a dropped guide, it was about 2k (I saw the warranty charges when I was signing the paperwork).I kept it at the dealer and paid the price. They replaced the head, all new valves, etc. It runs great! Also, the idle lopping I had at start up (only last 2-4 minutes, then would go away) is gone and my gas mileage has improved! This is the first repair in 128K, besides maintenance.