Hey I heard that the A/C systems for the 5.0 and 2.3 are different ( of course the compressors are, but the actual rest of the system itself?), Is this true? If so, what exactly do I need in order to have working A/C in my 347 swap into this 90 LX 2.3 of mine?
You need the low pressure line to the drier (which is all one piece), the compressor, and the hig side line to the condensor. While your at it, flush the remaining lines, condensor and evaprator and convert to 134A.
Not that hard, just takes a few dollars. I would also recommend that you add an inline filter in case the compressor goes south, or the drier explodes.