Identifying pistons

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Dec 16, 2018 | 09:00 AM

FowlerMotorsports

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Identifying pistons

So I am having trouble trying to research these pistons I have and cant find anything with the part numbers that are stamped on them. On the top of the piston reads E22 FM 81028B. On the inside of the piston I have AE425P 81025B. I believe these are Federal Mogul but nothing comes up. Anyone have any ideas?

Mar 1, 2019 | 12:11 AM

FowlerMotorsports

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Still have these and considering trying to use them if I can get more information on them. Anybody know of federal mogul having 5.3 flat tops?

Mar 1, 2019 | 12:31 AM

G Atsma

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You might give WS6store a call; they are a vendor/sponsor . They handle a lot of different parts and might know what you have. It can't hurt.

Mar 1, 2019 | 10:16 AM

JoeNova

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AE425 is the alloy they're made from.
FM is most likely Federal Mogul.

Mar 1, 2019 | 04:36 PM

FowlerMotorsports

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So I figured these are just a cast aluminum flat top piston and I am most likely better off running the stock 5.3 dished piston. I will provide a few photos shortly

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