Broken Piston Ring Found During Tear Down

I always run 93 or at the very least 91 octane in it, so I dont think it was bad gas. (Although, on Rocky Mountain Race Week, some of the gas stations in the middle of nowhere are a little sketchy!)

I can absolutely believe it happened at assembly! I had a well known, well respected, shop in east central Indiana do a refresh on the short block back in 2020. They did a hone, re-ring and bearing on it. **** happens - but it lasted 2 seasons with me kicking it's ***, so i cant be upset.