Quite a few copper rad-rebuilders delete the horizontal baffle entirely and solder TWO separate tanks on the core. This absolutely eliminates any leakage past the baffle, as happens in the corrected stock setup.
If you do this, also have them extend the inlet-outlet hose spigots by 1-1/2" out, so if you (or another owner) eventually upgrades to shrouded sucker-fans, the stock rad hoses will clear the fans & shroud mounted on the back side without having to cut the spigots and splice more hoses.
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