Hi I wonder if there are missing some cooling holes in my block. The blue markings are covered by the head gasket (best gasket)
The steam holes are home made but they are not drill in the heads.
The green markings are were there are holes in the head.

See if this recent thread helps.

http://forums.y-blocksforever.com/Topic80673.aspx?Keywords=steam+holes#bm80675

Lorena, Texas (South of Waco)

I found some info in the threads and i think everything is in place. It was just the different holes in the block and the head i was worried about