check this page out you can get a kit to swap you engine to either m50,m52,s50,s52 and a software program that will walk you through it.
http://www.zionsvilleautosport.com/s...ategory_Code=E
maybe another usefull link stroke you m20 in to 3.0L comes with complete parts lists.
http://www.davelength.net/car/engine.html