clutch question??

[crawlerdan]

ok i am going to put a sti 257 motor in my 94 legacy, and i plan on using the factory tranmission

what i need to know is what clutch flywheel do i need??

or at least what to ask for when oredering parts?

will the 2.2 stuff bolt on to the 2.5? visa versa??

need help asap!!