Hello all! ty to anyone who takes the time to read this/reply!

ive got a 2011 g37xs coupe, ive got a connecting rod failure so I am planning to swap the engine, i know from research that pretty much any vq37vhr will work with minor things needing to be changed/swapped from original motor

my doner vehicle is a 2015 q60xs coupe... ive read that some things i might encounter are coolant bypass ? (hoping someone can elaborate) and needing to swap sensors/injectors? hoping someone with some experience on swapping a newer vq into an older model can help elaborate on some of the hiccups i may encounter?

 

That for engines that have the OEM oil cooler/warmer ( metal donut with hoses behind the oil filter) if it does then you would have to swap all of your coolant metal lines to it.
The oil cooler/warmer engines use a pressurized coolant reservoir vs no oil cooler just uses a hose to the bottom of the reservoir.

With the system untouched with the non pressurized reservoir, you will fill up the reservoir and start leaking out of it once it overflow.

Use the 2011 Airfuel/widebands/primary o2s over to the new engine as well as your original engine harness.

In all honesty the 2015Q60xs is just a 2016 G37 coupe AWD. Everything else is the same.