I recently purchased a 2007 KTM 450 sx-f. The head has a spin cam bearing. After taking the head off I got online to order a replacement head and cams. I was shocked to find out that they don´t offer that head anymore. I´m sure I´m not the only one to run into this problem. Does anyone have any information on this? Can I use a head off of a 2010 after they started making them in the USA? Are there anymore options? I would sure hate to have to scrap this bike over a part not being available. Let me know. Thanks