Thanks for the advice, the crack is long maybe 4 inches ain't looked at it in a while, but i do remember it being a very shallow crack, just like if you were to make a imprint with a piece of tiewire. I was asking because one engine builder said good and the other said i would'nt trust it or use it. The bigger name builder said use it so i just might since it is a bowtie block and clearenced for what i need already. I just won't use nitrous or blowers i think.