Those marks don't look much different than the raised lnumbers and letters on the piston. You could hammer the marks flat, or grind them down but personally, I wouldn't worry about them.

__________________
Regards

Warren

Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL

ENTER > = (HP RPN)

Not part of the in-crowd since 1952.