[fordracing65]

A wet sleeve the outer surface is part of the water jacket around the cylinder, this helps speed up heat transfer between the bore and coolant. With coolant indirect contact with the cylinder sleeve corrision CAN be a problem. It can even insulant the sleeve from the coolant which reduces the main advantage of having a wet sleeve at all. The walls on a wet sleeve are thicker than on a dry sleeve, they dont have the same support from the block as dry sleeves so they depend on there wall thickness. In diesel engines vibration caused by combustion can cause CAVITATION this damage appears similar to corrosion and can eventually destroy the engine. Now that said i understand wet sleeving is a viable option, just dont see it too much in big block daily drivers. (I DONT DOUBT THE KIRKHAMS FOR ONE SECOND)