Power limits for LA small blocks?

yellow rose said
An R block or an X block would do. You just have to find them. No one bought them when you could get them. Always been that way.

For every high HP mopars built there is 250 Chevy engines built. Maybe more. The numbers never work out.

I already have a good block. What is the typical price for an R or X block? New I see them for almost 3 grand. By the time I got the block and rotating assembly I would be at the price of buying a crate motor with a warranty.