Iowa-class ships under attack at Pearl Harbor

What if the battleships at Pearl Harbor became Iowa-class ships early on 7 December 1941?

They would still be vulnerable in harbor, but better defenses and new compartment seals could help them survive and later provide more useful service.

The hypothetical replaces the battleships at Pearl Harbor with new Iowa-class ships shortly before the attack. Better anti-aircraft equipment and protection would improve their resistance, but ships caught in the same stationary setting would still take severe damage. New seals and undamaged compartment boundaries could improve initial damage containment. If repaired and returned to service, these faster ships would offer more utility than the original battleships.