How would the melting of one piece of metal prevent the warping of another?
The price is fine, but how would I ever know if it works and if it needs replacing?
If you are referring to the sacrificial anode to put in the cooling system, it is there to keep the aluminum head from corroding away due to the electrolosis between the Iron block and the aluminum. It doesn't hurt anything to put it in, but I'm not sure you need it if you are running antifreeze. I think the antifreeze is pretty good protection.
It's to stop or diminish the electrolysis from eating your head by using a sacrifice piece.
It has no effect except to deposit magnesium oxide through The entire cooling system. There is not any significant electrolytic reaction between cast aluminum and cast iron. This is a case of a fraudulent useless item that all the part vendors sell because they can profit by doing so.
FYI: If you google cooling system electrolosis you will find a lot of "stuff". Here is onehttp://www.lcengineering.com/LCTechPages/pdf/Testing%20for%20Electrolysis.pdf
Great info, Dan. I'm learning.
Well said ROYCE!
I agree and have been running a Z head since they came out with no problem.
Gene, are you running antifreeze? I just put a Prus head on my roadster this winter. I'm just wondering about maintenance, coolant change out use of never-sieze on plugs and bolts into the aluminum. PK
After a month of cool running on water, an the installation of a Z head, today I'm draining and adding a gallon of Prestone antifreeze concentrate.
I run a 50/50 or a touch less antifreeze. It's Important to use the Conventional (old green type) and not the high mileage long life new type.
A touch of anti sieze doesn't hurt on the plugs but I don't use any normally, you want a good ground which is easy as you thread in the plug.
I'm going with the green stuff and guessing the total coolant capacity is around 2 gallons with my new Z head.