LEB Ben
Arrogant A-hole At-Large
Sorry bud...that really sucks. Don't know the PN either. But those are what my grampa used to call peanut plugs...same size the ol' M blocks takes.
As far as the headers I have no idea what to do. I knew the price was too good to be true. I wish I noticed the plugs before I put it in. I would have sent the whole thing back. I don't know of any benefit to putting these heads on. Maybe the parts guy has more info on the motor or why this was done.

I just have to do the exhaust now.It runs and moves!!!I just have to do the exhaust now.