My 2nd sealing question, which water-pump bolts on a '69 340 need thread sealer

I'm pretty sure if you look at the back of a timing cover you can figure it out. That said the 4 long bolts and any of the short bolts on the bottom of the w/p that go through the timing cover ,which I believe is none. I was wrong 2 bolts do go all the way through. RTV works or any Teflon thread sealant.