Before any work was done, we agreed that since this was a truck engine, and a used one at that. He was to hot tank the bare block, magnaflux the block to check for possible problems and then we would go from there.
As for wether or not it is ACTUALLY a crack or a casting mark? That is a good question because it is kinda funny looking crack. Has ridges and doesn't look like a normal crack? I will look into that further tomorrow. I do a decent amount of business with this parts store so I would not be against splitting the cost of the work that has been done already, just to maintain a good business relationship.
