Ok. So the formula would be pi are squared times stroke times number of cylinders.
The 396 bore was 4.096 inches, plus .060 inches would be 4.156 inches diameter.
Radius would be 2.078 inches (one half the diameter). Radius squared would be 4.318 inches (radius times radius).
Times pi (3.14159), that's 13.56 square inches.
Times the stroke (3.76 inches) that's 51 cubic inches. Times 8 cylinders, that's 408.05 cubic inches.
455 bored 30 over is now 461ci
406 cubic inches .
317
No
302
359.3 cubic inches
287.4 CI
400 in^3
There are approximately 460 cubic inches in a 289 that is bored 0.40 over. This can also depend greatly on what kind of weight the car is holding onto.
Boring a 396 engine 0.030 inches over increases its displacement by approximately 17.7 cubic inches.
408
336.6