I have an LBZ block from when I converted my truck from LLY to LBZ over a decade ago that's just been sitting in the garage since then. The 'original' plan was to built it and then swap in with the existing LBZ top end, but you know what they say about the best laid plans of mice and men. It is mostly bare but still has the cam in it, but I noticed that there's what I would consider 'significant' surface rust in the bores. It may clean up with a good honing or mild overbore, but I don't know. In the opinion of the experts here, is it worth anything, or should I just scrap it at the local metal recyclers?