If memory serves, the heads are unique and have little to no value. The exhaust manifolds were prone to cracking, so good ones have some value if you can find the right buyer. See them on eBay.

Pistons were dished for low compression. Water pump setup is unique too, of no value. Oil pan of no value and limited applicability in my experience.

A good strong block with thick cylinder walls, typically can be bored out up to .120" for a 426 displacement bore. Good crankshaft and pretty standard connecting rods. I've seen 6 and 8 bolt crank flanges on them.

That said, I've one painted up on a stand in the pole barn. Put closed chamber heads on it and plan to use it for street use to move a station wagon around. Mine only had 45K miles on it. I paid $200 for mine several years back and was happy to pay that as good as it looked inside. I viewed it as a $200 short block in good condition.