my geo prizm is a little slow, it comes with a automatic transmission as well as a 7AFE engine. I was wondering how hard it would be to swap in a jdm 4AGE 20V engine, i understand that it comes with 160hp. I have been trying to research this for quite a wile with no help.

Is there any other engines that bolt in relativley easy such as a 4agze?

I would like to put in a low milage engine and a 5sp transmission before this spring so i can have a nice reliable ride for the warm weather.

or maybe a 4AGE with 4AGZE pistons and turbo?

cant put the 20v head on a 16 bottem end...youd have to do major block work and it would be an insane cost... head over to the celica section..find a post about 4afe to 4age head swap i wrote... you can swap a 16V 4age head on if you want, should make you about 150 Hp...realativly easy, just need new exhaqust manifold and intake manifold no sensor change no tnothign... you may want new injectors tho

4agze or 4age is an relatively easy swap,

A 3sgte swap would make even more power (210hp) but new engine mounts would be needed + the ecu

actualy 200HP.... and i woulndt advise that, ive done the swap and its not easy... 3sgte is insanly hard if you dont know what your doin....trust me chnage the head itll only cost you like $500 and youll reap the benefits