Here, a 454 "basket case" (all apart, but complete) is worth at least $800-900.
If you decide to use it, don't use the square port heads. Use the oval ports (unless they are "bathtub" chambered, then they aren't worth much. The bare block alone would bring $500.
Think twice about the SBC. They are
very generic, but very cheap to maintain and repair.
Good luck, whatever you decide.
