97 chevy lumina

i got a 1997 chevy lumina LS car has 150,00miles on it ,
i swaped the engine because i cracked my cam in half and baught a 1995 chevy lumina LS ,

i had to change a few things but it works fine,


anyways

i was woundering is there i was i can put a turbo charged 3.1 in it and if so what kinda engine as in 3.1 to ?? what are my options,


also do i need to change out the computer or flash it???