Newbie Exhaust Manifold Question

So I've been reading the forums for a while (especially since we removed the engine and sent it for rebuild), but just signed up today to post. They have been a lifesaver in many cases during this project. We are in the process of building up the shortblock into the longblock prior to reinstall. I had help from my son and he doesn't remember certain parts that he took apart or what held them together. So, we are putting the exhaust manifold back together but I only see three studs in the plastic bag marked "exhaust manifold". None of the instructions or searches on the forum nor review of the online parts manuals and workshop manual have cleared it up. From the parts manual, I found studs that go into the engine irons (labelled turbo studs - we don't have any turbos), but the parts manual only mentions four... there are 6 required to mount the manifold. Can someone help me fill in the blanks? I was thinking the studs are part number SL50-23-708 (23-701). Any help is appreciated.

Newbie Exhaust Manifold Question