I read a article from a builder that recommended using a water pump that cooled better because the fins were more closed off than most that you see. He said that with the Closed Fin style, the cooled was forced into a more narrow patch/direction, versus the open style with allows the coolant to kind of cavitate and stay stagnant.
Do they make a Closed Style for the 60 Legacy 2.5i non turbo?
Thoughts? See Images below