ok so headgasket's blown in current engine and we want a new one. i'd much rather have the 00-01 or 3.5. is there any significant difference between my current engine and trans and everything in the '00-'01? i drive a 99 GLE auto.
It has been done before. But there are significant differences so it depends on the amount of time and money you are willing to spend. One forum member thought about doing it but eventually went back to VQ30. Below are links for the conversion.