More food for thought. If you're talking about tearing this entire engine back down to the block again and having it reboard and buying a stroker kit for it and a new cam and new lifters???..
Again food for thought in my mind I'm thinking for a few hundred dollars to get a 440 block and start this process for pretty much the same amount of money and end up with a 505...
Leaving your 383 100% intact and either reusable or resellable to recoup... Also usable until the 505 is done... Then it's just a matter of switching out some exterior components, alternator... etc...