You will also need:
Axles,
Shift linkage,
Custom Hasport or placeracing mounts.
Wiring harness adaptor or modifcation.
The Si ECU, or B16a ECU.
Clutch.
Bigger brakes.
New Suspension.
min 14inch Wheels and tyres.
Bonnet with raised center section.
etc etc
Its not a swap to be taken lightly, and not one to be rushed into.