actually what u would really want would be the b18c crank with b18c rods, then get custom pistons from je, and have the pin moved up in the piston and uses a oil ring spacer, and it should work. im getting ready to start this project ive been working out all the numbers, if u bore it too 85mm with b18c crank, u get 1.978L of displacement, might as well call it 2.0L, if u manage to get a ls crank to work, and keep 85mm bore, you get 2.019L not much more displacement, and might run into some problems with the extra 1.8mm of stroke.
but im working on the numbers, if i could just get the differences between the b16 and b18 deck height i think i would have it all figured out, so if anyone has those numbers i would appreciate it.