Only way to be sure is get past the grime for casting numbers and pictures for folks to lend a hand.
Can you update with a picture of the stamp "53 S 12" and where exactly it's located???
More will chime in as you can provide pics.
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
