Guy's,
The weights were obtained from a few different sources on the net , in particular the SL600 was hard to find , however I had verication from two seperate sources off the web.
The SL600 engine is amazing when you look at all the area's of engineered weight savings , they used magnesium and aluminium extensivly and many areas are hollow where you would expect solid metal.
as I said I got most of the info from one source , but had to do a seperate search for some including the SL600 and 500SL weights.
The main source
http://www.team.net/sol/tech/engine.html
Or Engine weight FYI
It was a bit of work but interesting to come up with the numbers.
Den Downunder 1982 500SL Euro Red .