Just wanted to make sure these are normal. I looked at a picture of another block and it seems they might be, but mine looked a little rough and wanted to ensure they suppose to be there and not created by "free radicals" if you know what I mean.
1st Picture is front view looking into where the Driveshaft would seat. Both holes in question are seen here, the larger one I know is suppose to be there, but is it larger than normal?
View attachment 24825
2nd pic is the backside view from the lifter valley. This is the same hole as the smaller hole in picture 1. Assuming this is part of oiling, but it looked like something punched through there instead of a clean cast type hole.
View attachment 24827
This last picture is a block I looked at for comparison, and it seems they should be there, but on this block they look much cleaner (disregard the comment in the picture). Were the older blocks castings not quite as clean?
![good.jpg]()
1st Picture is front view looking into where the Driveshaft would seat. Both holes in question are seen here, the larger one I know is suppose to be there, but is it larger than normal?
View attachment 24825
2nd pic is the backside view from the lifter valley. This is the same hole as the smaller hole in picture 1. Assuming this is part of oiling, but it looked like something punched through there instead of a clean cast type hole.
View attachment 24827
This last picture is a block I looked at for comparison, and it seems they should be there, but on this block they look much cleaner (disregard the comment in the picture). Were the older blocks castings not quite as clean?
