help ID these piston rings

[32special]

I belive these to be for the 320 but I thought I'd double check on here. Nos rings in box.

[raycow]

Assuming that the rings are actually for a Buick, 3-3/16" bore would be a 263, not a 320.

Ray

[32special]

Assuming that the rings are actually for a Buick, 3-3/16" bore would be a 263, not a 320.

Ray

So there's a chance they might not be for a buick? im just going by what they said.

[bob k. mando]

263 is still a Buick, it's the shorter straight 8 family. the 263 was actually the last straight 8 Buick ever had in production and in 1953 shared production with the first year of the Nailhead.

http://en.wikipedia.org/wiki/Buick_Straight-8_engine

[raycow]

So there's a chance they might not be for a buick? im just going by what they said.

The box doesn't say anything about the rings being for a Buick. I was allowing for the possibility that they might be for a different 3-3/16" engine, like Ford, for example.

Ray