Quick info:
The Mercedes M112 Engine that is in our Crossfires came in various displacements ranging from 2.8 - 3.7 ...
The 3.7 was available form 2004 - 2006 in the Mercedes ML and S class models ...
The 3.7 produces 232-245 hp depending on the model ...
The 3.7 has the same bore as the AMG 5.4 ... 97mm instead of 89
Why might you ask wouldn't I just do the M113 V8 swap well there are a several reasons ... One being the weight of the 3.7 is nearly identical the the 3.2 ... Second for states with emissions and inspections the is V8 frowned upon ... Third it'll look factory and keep the ease of maintenance ... Fourth you don't need any special electronic wizardry

And here for the first time the XF 370 in progress :

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