[Dave Colangelo]

Yup the magnesium was the issue. It does reduce weight quite a bit but the pulled head studs were the effect that you got from using a far softer metal. That being said each engine has its strengths and weaknesses. I have never owned a 2.7 so i wont comment much on them but I have heard many horror stories about them. The 3.0 is a very solid engine I have yet to have an issue with mine and have put almost 10K on the clock which now reads just over 150K. The Bosch people wont be of much help the guy that most likely designed the system is long gone and the blue prints are long lost in a room of file cabinets.

Regards
Dave