It’s been a possible combo for a long time needing a big bore. 4.17 stroke X 4.100 bore is an example, (4.220+ bore size able race block needed here ->) 4.2 bore X 4.0 stroke is a 443. 4.07 X 4.25 stroke crank no longer available IIRC = 442 cubes.
IF you have the big bore small block, the one that is able to be bored to 4.2, then use the 4.25 stroke crank, you’ll end up with an incredible 471 cubic inches.
The current problem to achieving this (IIRC) is now the crank as the block can be a Ritter block for the bore size. Then to properly feed this size engine, you have a cylinder head problem. It only gets so good.
