Exhaust manifold bolts (need size)

[Low84]

We'll since I'm out on a week long break, I decided to finish off the truck's engine once and for all. I need to hook the stock exhaust manifold back into the engine. However, I don't have the old bolts and I'm having trouble finding new ones. I went to O'reilys and they first tried to sell me the head bolt kit, then the exhaust flange stud kit. But isn't the flange kit well....the one that connects to the pipe? I need the bolts that go to the engine heads. I had set a goal to have it up and running by tonight.

If anyone knows the correct size, name, or even a part number for the exhaust manifold-to-heads bolts. I would greatly appreciate it.

Oh, and i know the A/C compressor bracket hooks up to one of the bolts on the exhaust manifold....does this one have to be longer?

It's an 84 350 by the way.