Posted by Paul on May 03, 2000 at 22:10:16:
In Reply to: Extra holes in the head posted by Gil Huguley on May 03, 2000 at 20:29:49:
The large hole looks like the one my temperature sending unit goes into. The small one looks like it was made later after the casting was done. I'd just thread it and put a plug in it. I am assuming this is the drivers side, rear view of the block.