Power limits for LA small blocks?

Yep probably not a question that can be easily answered. Wish I had more miles on mine so I could give better feedback on longevity. Motor is probably right around 580-600 hp naturally aspirated and pulls my 3300 lb (race weight) Dart mid 10's in the 1/4. Don't have many miles on the motor yet but they have been tough miles since I'm always giving it hell! Combination of sreet driving and track days. Block has been fine this far and like I said, I haven't been easy on it. It's 7000+ rpm on the regular lol. I also wanted to keep all the interior so I have front buckets, rear bench, 6 pt roll bar with removeable swing outs and rear center bar. This allows easy access for rear seat passengers. Next is an overdrive so the highway miles will be comfortable even with 4.10's. So it's going to be a good street cruiser and decent drag car by the time that's done. But if my block ever fails, I'll post it up.