Hey, new here...would LOVE some help!!

[rubenguillenjr]

Hey, so I am new to the forum (going to be making my first intro in a day or so as I get my engine swap time lapse video done) BUT I would really appreciate on some guidance right now.

In the engine swap, we were going to keep the headers from the engine we were putting in, but since they didnt fit on my manual we kept my stock manifold. In taking the stock manifold off and putting it on, one of these plugs got missing, so now there is a gaping hole.

I have come to understand it is called a SMOG plug? But I have no idea how to get a hold of one (to tell you the truck the other ones are so rusted I would probably need a set of new 4 plugs/bolts.

I have been to autozone, advanced, oreilys, and other places (even called the chevy dealership). Where could I find one of these TAPERED bolts. I thought it was just a regulard plug, but it has a taper on it so I cant fit anything else in (like its gets smaller towards the end).

ANY information would be so SO helpful, because my truck has an exhaust leak right now that I would love to fix.