I asked this on YB and got no replies.
Alu BBC Donovan block, wet. High end engine shop pulled the sleeves to change bore size and they found small cracks between the sleeves.
Do the cracks need to be welded? Since the cracks are between the wet sleeves and with the chance of them only cracking again, I can't see where they really needed to be welded.
How hard is it to do a sleeve R&R usually? I am being told there's only 2-3 shops in the country that can do the job properly........
Or, anyone know of a good used alu block for sale?