Can you guys check this crank out for me

[baclay9]

I went ahead and pulled the bottom end of my 468 apart today with the help of a family friend. Wanted to have you guys check a couple f things out for me to maybe confirm some stuff.

First, it is a steel crank. I am not sure of the brand, he said it wasn't GM but I don't know. Also, everything I have read has said all 454's are externally balanced. But our family friend (who was a auto machinist for several years) is insisting this engine is internally balanced.

The crank does have places where material has beed removed (drilled out) and places that have had material welded in. Here are some pics of what I am talking about.

Here you can see where material has been drilled out toward the top of the visible lobe and where a kind of slug has been welded in toward the bottom. There is another slug welded in about the drilled out spot that you cant see in this pic.


By claypool782 at 2010-12-05

Here is a another place material has been removed

By claypool782 at 2010-12-05

It has also had the oiler holes kindof beveled. I am guessing for better oiling? As well as being double keyed on the front.

Here is a pic of the whole thing

By claypool782 at 2010-12-05

My question is, Has this thing been internally balanced? Thanks for any insight.