which engine is the best engine for little money, fast, durable?

[ochowdero]

I currently have a 87 supra NA 7mge 5 speed.
it runs decent, but i am going to replace some parts and get it up to standard. BUT
my only concern is that I dont want to replace parts that i cant transfer over. I plan on working on a seperate engine and build it up and get ready for install. which engine? idk.. ive searched the forums and am sure there is a thread on this topic but cant seem to find it. you can re direct me if you want.

which engine is the best engine for little money, fast, durable?!

this is what i want for my car: Daily for now. fast, cheap and reliable. when i mean fast, i mean have some decent kick that will put most cars to the test. 400hp maybe?
i have money and will invest money but dont want to go broke. thats where i have no clue on what engine to do. 2j, 1j, 7m?
i want to maintain my current engine til i get another engine(?which idk?) but dnt want to waste money replacing parts.

in an unbiased opinion on engines can you help another fellow out on deciding without hurting his pocket book?