A 289 bored .030 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
A Chevy 305 engine bored .040 over would typically be referred to as having a +.040 bore, indicating the increase in bore diameter from the standard size. This modification can increase the engine's displacement and potentially enhance its performance.
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