Get them cylinders back and send them to driveline or herr jugs racing. From what I hear they have the fastest turn around time and are very good Sent from my iPhone using Tapatalk
Guessing the crank seal started leaking and instantly leaned that cylinder out. I say that because I had a friend who had a seal go on the opposite side last winter and his piston looks identical to yours Sent from my iPhone using Tapatalk