not sure if this has been posted before but heres some parts listings for rebuilt ecms
(note i have never dealt with any of these, so take the usual precautions)
http://www.napaonline.com/Catalog/Result.aspx?Ntt%3decm%26Ntk%3dKeyword%26Nty%3d1%26N%3d599001%2b101987%2b50002%2b2002008 (http://www.napaonline.com/Catalog/Result.aspx?Ntt%3decm%26Ntk%3dKeyword%26Nty%3d1%26N%3d599001%2b101987%2b50002%2b2002008)
http://www.dmauto.com/web/dmauto/Catalog/NAPA_ECAT/1987/AMC+++++++++++++++++++++++++++/Eagle+++++++++++++++++++++++++/4.2+L+258+CID+L6++++++++++++++++++++++++++++++++++/1,4,11,15/1007/ (http://www.dmauto.com/web/dmauto/Catalog/NAPA_ECAT/1987/AMC+++++++++++++++++++++++++++/Eagle+++++++++++++++++++++++++/4.2+L+258+CID+L6++++++++++++++++++++++++++++++++++/1,4,11,15/1007/)
http://www.autocomputerecm.com/catalogsearch/advanced/result/?year_new=2624&make=1567&model_new=1627&engine=2669&oe=7539&first=engine&second=model_new&third=make&four=year_new&five=oe (http://www.autocomputerecm.com/catalogsearch/advanced/result/?year_new=2624&make=1567&model_new=1627&engine=2669&oe=7539&first=engine&second=model_new&third=make&four=year_new&five=oe)