Deves Piston Rings in the US can do this, but the way they do it is to
have you ship them a piston. They ship it back with a complete set of
rings for your motor. I asked about doing it "by the numbers" and they
said this almost never works. They can guarantee the fit if they have
your piston to fit them to. They did this for me with an obscure
Mondial racing piston when I bought a set with a cracked ring. They
really came through for me in a pinch. If you can't find one closer,
email me for the address. I don't have it handy. They're in the L.A.
area.
>
> I'm hoping someone in the group can help me. I have acquired a rare Honda
> S-800 factory race engine circa 1970. It has funky 2-ring pistons, and I
> need to find some rings that will suit. Compression ring is 62mm diam, 1mm
> thick, with a radial thickness of 2.5mm. Oil ring is 62 x 1.5 x 2.5. Honda
> has long since discarded their obsolete racing stuff. ...
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