The forged unit should have a lot head room for strenght and can easily be hardened. If the blocks mains check out and it passes a magnaflux , its probably OK... But that had to be hard on it. All depends on how hard it is to get another good core.

Kevin

87 Turbo Intercooled Raider, roller cam, torsen rear diff, LSD front diff, lockup auto with modified converter, V6 brakes, low transfer case gears...