I think the pin is fine but the pin boss edge in the piston got its edge deformed in the press operation (Probably used a socket or something as the support against the piston to press the pin into the rod instead of using the spoon jig to support the rod itself) I think I can correct These were magnum stroker pistons so no lock grooves hence the teflon button inquiry. When I pressed the pins out of these rods (old 360 pistons be damned) I used a 50 ton press with a electric pump in my fleet yards garage. I set them up and started the press and watched the pressure gauge build until the pins gave in with a pop...21 tons break away force! Pistons did not get damaged during that debacle, I thought for sure the pistons were gonna shatter under that 20 ton force between the rod sandwiching the lower piston side.