Factory EMS from modern cars

[zboi]

Is there any factory system that easily goes on these motors? 

Seems like an LS system can be moved over, as you can change cylinder count to 6 in the tune (btw the newer model atlas 4.2s used the same ECU).

Would be kind of hilarious though buying an LS just to take off the harness, sensors, coils etc and leave behind the V8, but it is cheaper and superior to most aftermarket offerings.

[zboi]

Dug into this more. Seems all LS run ECUs can be set to 6 cylinder mode. Earlier ones only allowed for 6 or 8 cylinder mode, later 58x systems allow 0-8 cylinders.
Earlier ones had some potential advantages, such as cable throttle body, simple 1x cam sensor. LS1s came with long injectors that will go in aftermarket fuel rails.
The 24x wheel though is a strange 2 piece deal with unique toothing for the signal, which may be harder to fit.
58x systems are DBW with a normal 1 piece wheel with even spacing. But have an odd 4x cam sensor with custom spacings.
From what I can tell on 58x system is that the crank sensor should be set so TDC of the prior cylinder (1-6-5-4-3-2 on GMs) so TDC of 2 or 20 teeth on the wheel. I'm not sure what it is on the 24x system. 

[HowlerMonkey]

I use a Infiniti M30 ECU with nistune.

[zboi]

So the Datsun flywheel is 120 tooth, 58x wheel is 60 soooo going to try grinding off 4 teeth from the flywheel 1/2 width and trying that as a trigger. If that fails it will be a 58x wheel bonded to the balancer