Water pump bolt size?

[7dsport]

I got one for you guys and gals, I am trying to get all the missing bolts replaced on my 350 so I can put her together and hopefully hear her run. I am missing some of the long water pump bolts. Anyone know what the specs are on these so I can replace them?

1970 350, automatic transmission, air conditioning. I don't know if this will help or not. Thought I would include as much addiontional info as I could.

Any help here would be much appreciated.

[critter]

Is this one of the long bolts that goes through and into the block? Not the shorter cover bolts, correct?

[7dsport]

yes, those are the ones I am needing.

[Terraplane]

They were studs, bolts will work. They are 3/8-16 X 3 11/16.

[7dsport]

Thanks for the info!! One more quick question since they were originally studs, is there anything that is supposed to go on the studs as far as securing any kind of bracket or anything? Or it that just something Pontiac did to secure pump housing only?