The ETK does in fact call for aluminum, but I don't see why copper couldn't be used in place.There isn't anything in the cooling system that will eat copper.
Originally Posted by SeattleLSB
Can anyone confirm the washer for the block is copper and not silver? The one I received from BMA parts is copper per the part # from Mango.
Rubs the roundel on its skin or else it gets the hose again.