i assume this is a ga to sr20 swap?
you will need:
ecu
ecu frame bracket holder
wiring and alternator harness
axles
MAF
headers
exhaust manifold
radiator hoses
power steering hose
ac compressor
alternator/power steering pump
radiator/fans
axle seals
starter
thermostat and water pump
heater hoses
if in a b14--passenger side mounts form 91-94 se-r

bleh im sure this list could add/lose items
jay whitely will chime in and correct me or something
if you need more help
AIM:theoriginalcarey
also there is a link
go to google and put in ga16de to sr20det swap
a link from sentra.net should come up or se-r.net
se-r.net should also help
bleh