Other than a good flush,what can I protect heads from salt water running.Normally ran in fresh only.Not wanting a system ,but maybe a treatment for testing only.

There is a pretty good product called Salt-X that helps break up the deposits during a flush. They sell adapters that go into the hose attachment.

do a freshwater cooling kit with heat exchangers.

Thanks Insptech,sfocean and puder.This BB really works!
bobcat

yes it does tehre is a wealth of knowledge here as wella s some of the best professionals in performance boating. I have learned a TON here

another thing to try is to hard anodize the water passage in the heads, that is what Edelbrock does to the alum. heads they sell for marine use,not as cheap as salt away but i bet it works well,Mark