Looking for the same thing, actually.
Got myself two of these Turnigy 6374 192KV bad boys and I was planning on using them in a dual diagonal setup.
The problem is, that I underestimated how little space I'd have under the threesix downhill deck I'm gonna use, so there's no way to "hide" them both under the board facing inwards.
So I'd have to mount them facing outwards. Which sucks though because the moment I hit something with the front, the motor is gonna get damaged as it's the frontmost piece of the whole thing.
So instead, I'd mount them both on the same truck in a dual rear setup and I'll have some peace of mind.
Problem is, two 6374's don't fit on a normal truck. Heck, I'm not even sure they'd fit on 220mm trucks.
@Dexter/torqueboards are your new 220mm trucks wide enough to hold two 6374 motors on them? I'd be using your very own v4 Motor mounts that I already have laying around.
Kinda frustrating because as much as I'd like to use the 6374's, there's no place selling caliber trucks that are wide enough and I'm close to giving up and just going with 6354's or maybe even 6364's instead...