yes it can but that size tire is recommended for 7 inch and wider rims. 16 inch grand prix wheels are 6.5 inches wide. 235/55/16 is a better option and what I run on my 97 GTP.
yes
No
No, the grand prix hood is totally different compared to a grand am's hood.
will a 3.8l engine from a Pontiac grand prix fit in chevrolet impala
Yes
yes
yes
yes, the 2 door grand prix uses the same door from 1988 to at least 1996
Yes
what does the grand am have in it now
Yes they can. I have 22's on my 05 Pontic grand prix
Give more detail what year of grand prix do you have what model grand prix do you have what is the engine size does it have abs