TraditionalToolworks
No Harm done so no worries. One other that can come into play is if it was a Canada.or Mex. Cast block I have a 292 which is a USA Block But stock with a Mex crank , So some cross Over at some point Maybe?? who knows. I don't remember when GM started doing some stuff else where. Heck I didn't live far from the GM plant in Buffalo NY. I was born their. lol