Power limits for LA small blocks?

I'd like to make a slight correction and add two cents to dukeboy's response.

If you think about it, the LA came out in '67, so the design is actually older than that poly replacement year.

Our engines were NEVER designed to do anything more than move people. Adding racing mods over the years from ourselves and with the factory, the engines ability to handle more power has been raised. From what stock can handle to what a race block can handle, those limits are unknown to me.

I'd love to know, but I think those
Numbers are in a state of flux, AKA, not a concreate number or level.

Take a good look at some of the import blocks. Stout blocks and methods found from various sources incorporated into there designs. The way I see there material is for certainly a lot closer to race ready than our stuff.

To the OP, various techniques have been employed over the years to help develop and maintain this type of power.

How you get there can introduce variables that other builds may not use. Perhaps that is builder dependent? I don't know.

The stock block has issues with sealing and introduced the race blocks with extra bosses for extra head bolts. If a stock block tries the same thing, there would be an issue under high pressure. What I remember of this issues was to "O" ring the block.

The next issues was block strength. Under the extreme stress, you'll split it in half. There really isn't anything out there to increase the block strength from being split down the middle. Hard block in the water passages help. How much is good? IDK. Or what other methods there are and ones that are
Proven!