e36 320 & 325 Differences?!

[greeny_mx]

I show my rookie-ness in the bmw scene by asking this question. What are the differences in the two mentioned models? I'm getting on a lot of sites that are american based and they list no 320 parts so I'm wondering what I can use (engine wise of course) for my 320 off of the 325. Thanks

[greeny_mx]

anyone? :S

[clabcon]

what year / plate of your car?