There wont be enough space for radiator/intercooler unless u recess the firewall... I hav an sr20 in my escort and its a pretty tight squeeze as it is (front to back)
Wat r you going to replace the standard crossmember with if u throw it out... Ucant jus weld engine mounts to the chassis rail and not run a cross member...
A set of custom engine mounts made properly and to hav the engine sitting were it should will take longer then 30mins to make as well...
Its a waste of time for a street driven car...
Jus stick with 1 of the many 4cyl and ull make the power ur after easy enough and itl save u alot of fking around...