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chrs1961815 · 07-03-2020, 01:05 AM

It may or may not be.

I know Hudsons in the 30s and 40s and other cars throughout the years had markings on the top of the pistons. Most of the times it is a manufacturing item, like a letter corresponds to piston size. I have only seen a single letter used, but I have not torn too many engines apart. If you could find out the manufacturer of the pistons, they could probably help you in some way. Btw, I checked google and could not find anything for a code like that.

07-03-2020, 01:05 AM	#2
chrs1961815 Senior Member Join Date: Jul 2018 Location: Spring Grove, Illinois Posts: 1,371	Re: Piston size It may or may not be. I know Hudsons in the 30s and 40s and other cars throughout the years had markings on the top of the pistons. Most of the times it is a manufacturing item, like a letter corresponds to piston size. I have only seen a single letter used, but I have not torn too many engines apart. If you could find out the manufacturer of the pistons, they could probably help you in some way. Btw, I checked google and could not find anything for a code like that. __________________ "The more things change, the more they stay the same."