What does YD mean?
03-27-2004, 10:56 PM
#1
2nd Gear Member
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Join Date: Jun 2003
Location: California
Posts: 418
What does YD mean?
I'm rebuilding a 65 mustang 289. I was looking for the overbore stamp on the pistons, 5 of them are .030 over, two of them are 0. And one of the pistons looks like it has YD stamped on it. Does any know what that means?
