Thanks for the  information there is some interesting pictures in  the links you provided!   

See if some of these links to past threads helps you out.
http://forums.y-blocksforever.com/FindPost7036.aspx
http://forums.y-blocksforever.com/FindPost107840.aspx
http://forums.y-blocksforever.com/FindPost39082.aspx
http://forums.y-blocksforever.com/FindPost36414.aspx
http://forums.y-blocksforever.com/FindPost28056.aspx
http://forums.y-blocksforever.com/FindPost48055.aspx
http://forums.y-blocksforever.com/FindPost41341.aspx

Lorena, Texas (South of Waco)

I was  looking in  an old mag and came across a  Article about a south American Faze  II 292  Y block! Does any body have any information a about this engine And what else besides the heads was changed to make this  engine!