I have heard alot of stories about the SHO cam problems and welding. All you have to do is do a search on Yahoo for SHO cam welding. I also have a freind that works at a Ford dealership in CT. and someone had a SHO v-8 motor that failed and the technicians looked up the price for a replacement crate motor and it was 17 g's. Not a typo, 17,000 dollars.