New 1958ish 392 blocks?

Are there parts for this? Aftermarket heads?
I think rusty said a BBchevy, timing chain fits. What else is interchangeable?

There's A New Hemi In Town – Bear Block Motors' 392 Hemi Block

Said it should now be good for 1,000horse power.

Not quite. You can run a big chevy or small chevy water pump, depending on which adapter you use. I used the big block pump adapters on mine and have a big block short pump on it. They will accept a small block Mopar timing chain and gear set. Hot Heads Hot Heads Research & Racing Early Chrysler Hemi Engine Parts has purt near anything you could want for one.