a BOSS 414!
Sounds like a 343 to me. But for parts its a 283 bored 60 over
The bore adds about 10 cu. inches to make it a 337
4.310
If my math is correct , just over 362 cubic inches ( 4 inch bore x 3.5 inch stroke , bored .060 inches )
a Chevy 350 bored .060 over would be 360.4 cubic inches
468
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 )
No a 383 is a 350 with a 400 crank. A 350 bored 60 over is 361 cubes.
336.6
It ends up being about 361 ci
Produce more HP depending on much much they were bored. The engine can generally be bored up to .060 over in most cases.
10 degrees with a stock cam