Z32 fronts will not fit S13 or S14. S14 front will not S13 knuckles either. Only way you can use s14 is if you use complete s14 front lower control arms wth knuckles and hub.
S13 FRONT OPTION: Ebay, Ichiba, S14 complete LCA and entire knuckle set up.
S13 REAR OPTION: Z32 N/A 90-96. Z32 turbo will not fit since turbo hub splines are different. Z32 N/A Rear will fit both s13 and s14, but you must use Z32 Ebrake set up or keep S chassis rotors drillled to 5x114.
*J30 will not fit anything, s13 nor s14, nor 300zx. 100% certain, I tried, and I am the 5 lug king.
Go to the link below, you'll find the Definitive 300zx brake swap plus other s13/s14 stuff you might need to do.
http://www.tunerclub.net/forum...ilvia
Modified by Duce40sx at 10:46 PM 2/23/2010