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 )
406 cubic inches .
408
336.6
A ford 302/5.0 will be 306ci if bored .030 (4.030" bore)
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 )
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 )
413 cid
BIG BLOCK OR SMALL BLOCK DOES NOT DEPEND ON CUBIC INCHES . IT IS THE DESIGN OF THE BLOCK ITS SELF.
350
approx. 366cuin
The 390 Ford motor is an FE block and was made as a Big Block only. The small block or Windsor motor could be bored and stroked to have 390+ cubic inches. To build a stroker motor you have to do extensive machine work and parts matching. That process usually involves large amounts of money.
6 degrees advanced, or BTDC.