Meh only thing different about a JDM 6bolt is the Cyclone intake manifold. You will most likely need a 6bolt torque converter or flywheel, not sure how the auto 6bolt swap goes. As for the Cyclone intake manifold, it works great if you hook it up properly.

http://www.dsmtuners.com/forums/show...hlight=cyclone

And as for the oiling system, only thing I would think would be different is the JDM motors(just like the 90 USDM motors) have an external oil cooler hooked up to the oil filter housing.