That does fit in there sooo perfectly. It's interesting that the 2JZ also has a 86mm stroke and 86mm bore. Along with 6 cylinders, that makes it a 86x86x6. Seems fitting for the FT86.
I just love the combination of a cast iron block, aluminum head. The perfect combo for boost.
It's not that insane either, there are 2JZ-GTE's all over eBay in the $1900-2500 price range. It'd be cool if someone would make a kit to do the swap. The hardest part would be the electronics. So if the kit cost $2500, you'd be talking $5k total for a twin turbo I6. Dial down the boost for a 400HP daily driver then crank it up to 600HP at the track.
BP