Why would you get a 2jz or evo motor when your 4g63 engine is capable of putting a lot more than 600 horses to the wheels? I will tell you a reason why not to get any of those engines - they are not positioned as your engine is (evo is mirrored and 2jz is vertical). The only engine that would fit easily is evo 1-3 engine but you already have the same thing in your car. There are few steps in achieving your goal:
1. rebuild your engine with forged performance internals
2. buy a decent turbo such as FP black or similar
3. supply enough fuel with big pump and injectors
4. get a DSMlink or a standalone management system so you can tune your car
5. check if everything on the car can handle the power your engine is producing (gearbox for example)
6. turn up the boost

Swapping in a 2jz would be a very difficult swap as it would need different mounts and a lot of custom work, and is a swap that no one has done before,

As for the evo swap there really isn't any benefit to swapping in an evo engine as it is essentially the same engine to our 4g63s, so just building up your engine would be the best bet with forged internals etc. but if you want to do an engine swap then you could do a 6 bolt swap as it's pretty easy and it's also considered to be stronger than the 7 bolt dsm engine

i think a 2jz would be cool,but unless you are a pro and have a shop equipped garage id lisen to reason and build your 4g,

6 bolt is not stronger than a 7 bolt...its just a bit more user friendly. But if you build your 7bolt the proper way you won't have any problems. My advice is to buy already built engine that hasn't been assembled yet. Many people end up giving up on their projects and selling new stuff at half price. I think I know a perfect engine for you, I'll paste the info on it and give you a facebook link of the guy. (I bought some stuff from him, hes legit).
"Still for sale from drag build part out:

-2.3L 6 bolt stroker block with 0 miles on it. forged internals. 100 mm eagle crank, eagle H beam rods, 85.5 wiseco stroker pistons, oem balance shaft delete. New rear main and seal, arp mains, arp rods, acl race bearings standard sized. Decked for a mls gasket, oil galley on front case side had been smoothed out, new front case asking $2200 OBO

-7 bolt head built by Strictly Import Motorsports. Head has 0 miles on it since build. ss valves, Mahley beehive springs, bronze valve guides, viton seals, 5angle seat grind, stage 1 port/polish, kelford 272's, decked obviously for MLS gasket, used the thick MLS hg, arp's, hot tanked etc, stamped with SIM's build stamp (build number SIM849) head work was $1684 asking $1400 OBO

-2g TRE standard stage 3 AWD tranny with 500 miles on It when I purchased it. Just had it sent to my transmission shop where it was gone through and torn apart checked/flushed/painted. They said everything was brand new inside and had been built. Asking $1250 for it OBO

-JM Fabrication Race SMIM for 7 bolt head and flanged for 1g throttle body. Has some minor scuffs from sitting around but can probably be polished out. Comes with the gasket for it. Asking $350 OBO

- 2g viscous LSD manual rear differential. Housing has been sand blasted and plasti dipped with a new cover installed. All gears have been pulled out and checked for any wear. Asking $225 OBO

-2g LSD rear axels. Asking $225 OBO.

Everything is located in NY and will ship at buyers expense, but prefer pick up for block"[DOUBLEPOST=1411601076][/DOUBLEPOST]https://www.facebook.com/josh.justin.923?fref=nf
heres the link to his fb if you're interested

Thanks for all the information guys. Toni, thanks for his facebook, I'll probably be contacting him soon.

Glad to help