crx hf...hubs and axles same as si?

Just curious, when i get the money saved for a b16 i already know everything i need if i were to put it in an si, just trying to get an idea on what extra I am going to need for an hf.

edit* its a 91 btw

you will need dx or si hubs and stuff cause the splines on hf axles have different splines, and thats about all, you should get the si front assembly brakes and all