[bignuk1]

A garage full of parts came with my cars and I am trying to sort out what is sellable and what is junk. I pulled 4 blocks out and in trying to id them noticed 3 of 4 had what appears deterioration of the metal at the back of the block towards the distributor but inside the block. Is this normal or are these junk? Thanks

 

[bignuk1]

Thanks for the input. I will sell as is and not scrap them.