Open bolt hole in 426 hemi head - exhaust side

[doberjoe]

Installing the factory cast iron exhaust manifolds on my 426 hemi crate motor. On one end there are two bolt holes that appear to go into the head where a head-bolt goes thru the head. The hole is "open" to the atmosphere. Should I plug it with a stud? The manifold bolt goes into one of the two holes, but the other hole is unused (and unfilled).

Do I leave it open, or do I put in a flush stud with some sealant on it?

Thanks!

 

[gtx6970]

Leave it open.

I don't think any are wet on a hemi

 

[Bird 426]

Picture of what you are talking about?

 

[Runcharger]

No attention needed.

 

[not so famous bob]

Installing the factory cast iron exhaust manifolds on my 426 hemi crate motor. On one end there are two bolt holes that appear to go into the head where a head-bolt goes thru the head. The hole is "open" to the atmosphere. Should I plug it with a stud? The manifold bolt goes into one of the two holes, but the other hole is unused (and unfilled).

Do I leave it open, or do I put in a flush stud with some sealant on it?

Thanks!

are you sure your not looking at the oil return hole in the corner of the head ? wedge motor don't have them ...hemis do...

 

[doberjoe]

Picture of what you are talking about?

thought I had a picture on my phone, will post one as soon as I can get back to the shop

 

[doberjoe]

thought I had a picture on my phone, will post one as soon as I can get back to the shop

here are some pictures. Passenger side (rear) shows an open threaded hole. Driver side (Front) shows a half-hole visible.

 

[not so famous bob]

here are some pictures. Passenger side (rear) shows an open threaded hole. Driver side (Front) shows a half-hole visible.

View attachment 1822849

View attachment 1822850

scusem Waugh , I thot you were talking about inside the head .
I wouldn't worry about that f it doesn't go thru to the water jacket , or such...
assuming you have the right manifolds on it , been too long since I had my hemis ?????/