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A 289 bored .030 over.
That would be called a Chevy 307 bored .40 over.
its called nothing because you wouldn't have a ENGINE left if you bored it 4" over
A 262 bored 30 over.
A 427 bored .60 over is 438.8572417 or basically a 439.
332
355
As much as your wallet can afford.
The bore adds about 10 cu. inches to make it a 337
332
Olds never had an engine that displaced 442 cubic inches ( common mistake ) 442 was a model or option designation depending on year built engines available were 330/400/350/455/ Later on 307 General rule of thumb you gain about 2 cubic inches for every .10 over. Example 455 at .60 over would be about 467 to 468 cubic inch engine
Sounds like a 343 to me. But for parts its a 283 bored 60 over