Chinos transport

Thanks yea sorry new here. I have a ac427 engine in a 05 Mack ch 

and yea one of my studs are leaking so I’m looking for one I bought the gaskets already. So hoping for studs number thanks 

Hi I have a problem with my truck it has been going thru like heating engine or Trubo issues it comes low power when something heats up but the coolant is 170 degrees 

when I disconnect the turbo speed sensors it opens up the vgt thing and works better because it’s taking all the heat out but I am unsure what it could be. I was thinking egr but also the air charge then my engine stalled today and my oil is almost burning it does not have temp gauge in the dash so idk. But feels like more hot than it should I lost my air intake reading when it stalled where is that measured ?? 

Any help thanks in advance.  

Hi about this problem of the exhaust manifold leaking oil. Where can I font the bolt that’s not the dealer I went and said don’t have any now.  I’m order but may be long any number for Amazon or something?   Just asking thanks