Rich,
As everyone has posted above, that 261 block could be a very good find. HOWEVER, do you have a guarantee that the block is rebuildable?
Besides the possible damage from the broken rod, these old engines might have been rebuilt more than one time over the years. The crankshaft and the cylinder bores get ground/machined during most rebuilds - they could be at the end of their "rebuildability". A replacement crankshaft is not hard to find, but a block that has already been bored .080 might not be a candidate for a rebuild.
