360 Bore

It's possible that it's not a good idea for the street, especially filling the block a lot. But that's why I said it was debatable. I've seen discussions on it but don't recall the details.

I didn't see any negative affects in my race engine and I've heard that there isn't much water movement at the bottom of the block regardless of application. The closer to the deck you get, the more important the water flow is for cooling. I just never tried it on the street.