thanks a lot guys, i have started to breakdown the engine as of yet, but here are my plans.... i have a silver 03 IS300 with an A650E auto trans, i went to a Pull-A-Part on Dec. 8 2012 and pull an engine out of a 1992 LS400, the OD read 186,XXX miles, the think was completely nasty and gummed up, opened the oil cap and think black gunk is all i could see, paid $350 out the door for the engine, trans, wire harness, and ecu, i plan to purchase a full engine master rebuild kit, and take my time and break it down and somewhat build it back up with cams for sure just not sure on what else, id love to make 300whp all motor with it, i am planning on trying to get my hands on a nice 05-09 350z 6 speed to put behind the 1uz, my 2jz-ge is turbod' at the moment but its just wasnt enough of a challenge for me and its too common, i have searched and yet to find a 1uz non vvti IS300, i plan to run my factory IS300 ecu to control everything on the car itself, and wire the LS400 ecu to the IS300 ecu to get everything working, that way the LS400 ecu controls the engine and sends certain signals i.g. speed sensor, water temp, engine speed sensor, oil pressure, etc.