The bore adds about 10 cu. inches to make it a 337
If my math is correct , just over 362 cubic inches ( 4 inch bore x 3.5 inch stroke , bored .060 inches )
any Chevy 305 block can be safely bored .060 over. if you have a good block, with thicker cylinder walls, it might be .080 borable.
a Chevy 350 bored .060 over would be 360.4 cubic inches
283 bored .060 over should b abour 292 cubics A standard bore 283 was 3.875", so 60 over would be 3.935.
If my math is correct : using a 4 inch bore and a 3.48 inch stroke , with the cylinders bored .060 , just over ( 360 cubic inches )
Depending on the piston type you are running, you would bore .030, .060, .090. Or, .020, .040. At .030, you come out to 355. So, at .060, 360.
10 degrees with a stock cam
No a 383 is a 350 with a 400 crank. A 350 bored 60 over is 361 cubes.
.060"
413
A 383 Chevy is a 350 block with a 400 crank bored .030 over. If it's not bored oversize it's a 377 (Not the only way to make a 377). If it's .060 over, it's a 388. Most builders agree that you cannot safely bore a 350 block .090 over, but if you did the resulting engine would be about 394.