With a 4.375" crank,(103") it is very common to bore the cases to
accept a 4 1/8" cylinder allowing 117" total swept volume to be established.
Longer stroke engines require the C/L of the wrist pin bore to move up into the ring pack, 1/2 the length of the total stroke increase, and can pose a problem as far as a piston being available.
Iron XL's with 4 5/8" stroke actually have an aluminum botton that rides in the end of the wrist pin, to support the oil control ring, as the wrist pin bore is well into the oil ring groove.
Not the greatest way to fly.
Wood's site shows a street-driven touring 4 3/8" X 4 1/8", 117" at 141/144 that we built yeeears ago.