Jonathan Lewis wrote 
Hi all!    Can I easily put a' '86 2.1 from a Synchro into my '85 [1.9]?
What _must_ be changed? And is there an archive/website/contact that might
help me with this swap? I am not afraid of wiring if that is needed. TIA,
JinNJ

the short reponce is treat it like a 1.9 use everything over except the long block from the 85. you will also need to change the pipe for the oil filter to eliminate the oil cooler 
I have 2.1s in both of my 85s one is a big valve engine looks just like a 1.9 until you drive it
Bob Donalds 
http://www.bostonengine.com

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