Oil pump install question.

You can find them online. I found this one for my current car at a swap meet last April. I also have a few others I keep for reference.

Ok so I had another first time surprise when I was unbolting the headers. I don’t remember this happening on my small block 289 but I guess it must be a Mopar thing. Coolant coming out of the bolt holes when I removed the headers bolts? I hope this is normal? It wasn’t every hole. Do I just dab some RTV on them when I put things back together?