Oh.....I am so glad you specified block!Does any one on the west coast know a good engine builder. I have a 6" crack on my block.
It is out of a 1999 3500.
Stitching seems to have good results also,
Keep in mind stitching may mend the problem but not fix the underlying problem with the block as there are mixed reviews. There are lots of posts on here about the 53. If even thinking about using it do a lot of research before shelling out the money.