ring end gap factor

GRAP6 said
400 B Block stroked to 451 - platinum series Forged pistons. Do I use the .004" gap factor for a street engine. 440 source piston part number 5056? any guidance appreciated.

I am no expert, by any means, but on a bore that big, I would really be afraid that the ring ends would butt at anything much over a cold engine....

Just sayin'...

I have no experience with that, but jeesh... .004" is practically nothing...