Interesting,I've been running aluminum water heated intakes on cast iron blocks for at least 10 years.No problems and I change the coolant maybe once every five years.
What about all the iron blocks with aluminum heads,like the millions of late model Chevy LS V engines in trucks? Or the 10 of millions of Japanese engines of similar construction? And all cast iron iron engines with aluminum water pumps like Jeep 4.0's?
Is the aluminum used in these engines anodized or other wise treated to eliminate corrosion?
