Hi crisharn1
Just a quick list of what you'll need:
Ofcourse your engine
B-series engine mountings (Oem or aftermarket)
B-series driveshafts, you should check if the outer cv joints fit in your wheel hubs, if not EK4 front hubs
B-series gearbox + shift linkages, preferably 1 which has a lsd or you can just add that afterwards
B-series clutch & flywheel (Oem or aftermarket)
B-series radiator hoses
A EK4 engine loom would make life easier connecting all the new sensors etc
I suggest a upgraded fuel pump (walbro 255lph)
A decent engine management (get some extra Hp & torque with a great tuning session
)
A 63mm (2.5")exhaust system is what I'd go for
At this point your car will be running
From here on is safety related
Have your cars suspension components checked out & replaced defective parts
Do suspension upgrades, coilovers, strut bars etc otherwise you'll only be going fast in a straight line lol
Upgraded front disks & pads
Convert to rear disks as well
Steel braided brake lines
Oh wheels & wider tyres (195/50/15 with lightweight wheels MINIMUM otherwise you'll be spinning of the line
) because of nearly double the power the extra torque