First check the date code on front pad to be sure it did not come out of somthing like a vette, it might be worth more to someone looking for a #s matching block.
If its not anything fancy you have to copletely disasemble the engine and throw everything away except the block.
You now have a 350 or 327 block and you just buy whatever parts you want. Waste of money to build a large journal 327 you need everything new. I am building a small journal but, it has a steel crank already.
For the same money you can build a 350 or for a little more a 383.