[blykins]

Is a Dart block stronger? Absolutely. However, they're not indestructible. If you had broken a rod and it had windowed the block, that would have been the end of it.

With a goal of 500hp, a production 351W block would work just fine. There's a lot of them running around and before the Dart, World, and FRPP blocks came out, that's really all that we had.

BTW, I'm certainly not trying to talk Dana E. out of a Dart block if that's what he wants, but if he would be content with less, it would be nice to have the extra cash in hand.