Why Tiger was the likelier 14-inch battlecruiser conversion

Could the Lion class or HMS Tiger have been converted to 14-inch guns?

The Lion class was doubtful, but Tiger's wider turret-barbette arrangement made her a more plausible candidate.

A Lion-class conversion to 14-inch guns is doubtful. HMS Tiger is a more plausible candidate because her design was slightly broader around the turret-barbette structure. That extra space matters when a larger weapon demands a wider mounting, ammunition path, and supporting structure. The exchange shows why ships that look similar in role cannot automatically accept the same major-calibre conversion.