N/A motor in Turbo car.

[2.5turbo]

Hello All, Im new, and needing information. I was given two eagle Talons, one turbo/awd/auto and one NA/fwd/auto. The guy pulled the n/a motor and dropped it into the turbo car.. but the "flexplate" type thing on the NA uses three bolts to mount to the torque converter, whereas the Turbo uses 4 bolts. Can those flexplates be swapped via the 6 bolts? sorry, im a noob when it comes to japanese stuff.. The other question is: Is it safe to run a turbo on an NA motor? I know certain GMs were the exact same engine just +- a turbo.. Im in need of help.. I hate the automatic in a turbo car, but they are both FREE to me, and itd be a really nice driver.. any direction/help is greatly appreciated!