Originally Posted by Larry M
Sea Kamp, cupronickel heat exchangers for the Ford Lehman's are readily available for less than $700. I'd buy new and not mess around. When we changed ours out, we also changed the transmission and oil coolers. Less than $250 for the pair.
I think this is really good advice. Any mess up or leaks could put salt water in places it really shouldn't be, and cause significant damage.