A small block Chevrolet (SBC) 400 engine has a stock bore of 4.125 inches and a stroke of 3.750 inches. If you bore the engine "40 over," it increases the bore by 0.040 inches, resulting in a new bore of 4.165 inches. To calculate the cubic inches, use the formula: ( \text{Cubic Inches} = \text{Bore}^2 \times \text{Stroke} \times \pi / 4 \times \text{Number of Cylinders} ). This results in approximately 406 cubic inches.
406 cubic inches .
No
A 455 bored 30 over refers to a 455 cubic inch engine that has been bored out by 30 thousandths of an inch. This process increases the engine's displacement slightly, potentially enhancing performance. Typically, such modifications are aimed at improving power and efficiency in high-performance applications. This term is commonly used in the context of automotive engine modifications, particularly in classic or muscle cars.
287.4 CI
A ford 302/5.0 will be 306ci if bored .030 (4.030" bore)
If my math is correct , just over 311 cubic inches ( using a 3.875 inch bore and 3.250 inch stroke bored out 30 thousand )
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 )
365 ci
377
If my math is correct , almost 293 cubic inches ( using a 4 inch bore that is bored out .030 and a 2.87 inch stroke )
If my math is correct , just over 362 cubic inches ( 4 inch bore x 3.5 inch stroke , bored .060 inches )
If my math is correct , almost 410 cubic inches ( using a 4 inch bore and a 4 inch stroke that has been bored out .040 )
Its a 355 cubic inch
It is about 446 cid
a Chevy 350 bored .060 over would be 360.4 cubic inches
455 bored 30 over is now 461ci
413 cid