If it's got a hole in the block it's scrap price. About the only desirable part of that engine is the block lol. The early 5.7's were supposed to be fairly beefy in the cylinders. Cast crank, powered metal rods, weak sister pistons, least desirable heads, etc
For he's looking at it for it's worth a 100, there is always somebody looking for a spare set of heads now matter how the breath, toss the heads on ebay make back some money
I've been looking around here for trashed block and now one seems to have any.