Maybe I’m just staring at this thing way too long, but I noticed what I thought was a hair stuck to the cylinder wall of of my Chevy 235 I’m rebuilding, well it’s definitely not a hair, seems more like a small scratch or something. I can’t feel anything when I slide my hand past it and it don’t think it’s a crack or at least I hope not! I just had the block cleaned and bored at the machine shop, this is my first time rebuilding an engine, and maybe I’m just being a bit paranoid? What do you guys think? Sent from my iPhone using H.A.M.B.