I've paid mild attention to this topic for a number of years as I have 3 401 6 cylinder diesels plus Ford Powerstroke PU engines (none of which have showed this problem). The industry sources say the cavitation is due to the high level of diesel "ping" as it fires under load. This ping sets up the coolant touching the cylinder side into small bubbles. As the bubbles burst, the coolant slams back into the void and slams the cylinder sidewall hard enough to create the erosion. In the Powerstroke engines this can be greately reduced by using the Ford coolant additive. I think it acts like a soap keeping the coolant "wetter". Ford formulated a yellow color antifreeze with the same properties, so it does not need the additive. This same type of cavitation occurs in other brand tractor and truck diesel engines and is dealt with in a variety of methods.
Our gasoline engines have never had any significant problem with these issues, as their combustion is more of a "woosh" than a "bang". Antifreeze formulated for big truck engines is a different chemistry than normal auto antifreeze. It does not have the silicates that auto antifreeze has.
As to the interchangability of the gasser block and the diesel block, I have no real knowledge, but I'd sure have my doubts.
Paul in MN