0F9FAE27-0CDF-434B-AF9A-C15B4B1CFD06.jpg

 

sorry..the rusted one.

 

Doesn't look its threaded is it? I have seen lots of "holes" on my Monte and if its not threaded I simply ignore it. I guess if it was threaded there could be a bolt missing? I can't see very well but its not from the EGR valve line right? That is still intact?

 

'Sorry, I don't know what that hole is , but it looks dirty I like the clean one better *& I don't know what it's for either

 

I surely don't know what there for...
But they both look like there Missing the bolts that go in them...

 

• Rebuilding the 3.8L Buick Engine - Engine Builder Magazine
  Click (Good Read of a 3.8L) I tried to find a diagram of the GM Block with attachments, but could not find yet ? Mr Google was sleeping this Sunday & didn't want to help me
  www.enginebuildermag.com/2008/03/rebuilding-the-3-8l-buick-engine/
  
  
  
  
  Mar 1, 2008 - The 3.8L block was updated with a one-piece rear seal in '90. ... So, three of the bolt holes for the oil pan were relocated to fit the ... When GM upgraded the 3800 to a Series III in 2004, they switched to powdered-metal, forged rods. .... to be one of the “most significant V6 pushrod engines ever designed.
  
  
•