[undy]

The 428 block is tremendously weaker all the way around than the Pond or Genisis blocks. The OEM non-cross bolted blocks had a tendancy to split down the center of the block with high HP, hence Ford's FE cross-bolted block for their flag ship. A typical 428's good for "maybe" 0.030" over bore. They also were racked with OEM core shift problems. The Pond has the "correct" date codes and casting numbers, capable of fooling any DMV. If you want bullet proof reliability Shelby, Pond or Genesis IS the only way to go.

dave