I bought these on eBay to use in my M42, but would rather go with proper M42 pistons. I bought these thinking they are for an 84.5 mm final bore, but check the spec sheet. It says 3.307 inches which is 83.998 mm. No wrist pins and no rings. What you see is what you get. $350. Will ship at your cost.
$350 New CP Carrillo M50B25 pistons 10.5:1
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