So I’m trying to help out a buddy get back on the water. 98 200 carb. Scuffed two port pistons. Cylinders look good enough that the acid/ball hone trick should get them decent enough. Was looking at some used pistons on eBay. These pistons that came out have a 64D00 stamp. I can’t find any with that stamp but there are a few a 64D01 stamp. That a superseded number or a different piston?

I wish he just had a Merc lol