Weight of M120 V12 engine anyone?

[OutOn]

Hi chaps, just a quick question.
Does anybody know the weight of the Mercedes M120 V12 DOHC 48v engine? That´s the lump in the previous S600 and the Pagani Zonda in AMG-E73 form. Probably more than 650 lbs but I´d like to know for sure.
Thanks everybody!

[OutOn]

Thank you MDG, I know for sure that the weight of the BMW V12 with ancilliaries(but without the big fan and its viscous clutch) is around 205-210 kg. The 290 kg has to be with ancilliaries and it looks as a true figure. Cheers!