Silverblade

I have a 302 block from a foxbody I am about to drop into the 67 but I noticed two open threaded holes on the pass side of the block. One is at the front-most end of the pass side and the other one is right below the rear frost plug. I am wondering what they are for and what I should do with them. I assume something for oil perhaps external cooler? I can send a pic they look to be in the 3/8 to 7/16 range. Thanks guys

folivier

Does the hole actually go into the block? Or is it just an attachment point?

bop11

If you are talking block, not head, the back one is probably for a ground strap from the firewall. The front is either the ground from the battery or the alternator support .