This is getting real funny or no one really knows. I have ben to 3 auto parts stores and the place that did the work on my engine block and heads, and still no one can tell me what the 2 openings on the heads are for. If any one knows or can tell who would know, please let me know. I am going nutty over this and I am not sure my engine will work.

 

https://classicoldsmobile.com/forums...ocked-off.html

 

If the machinist don't know about that I would go someplace else, seriously!