Author Topic: Aluminum Heads Issues with dis similars metals. Corrosion  (Read 1235 times)

Offline mrgenerallee

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Aluminum Heads Issues with dis similars metals. Corrosion
« on: September 29, 2017 - 11:08:07 pm »
Not an Expert, Yet I am a mechanical contractor, and even basic  water heater hook ups, Steel  take  water fitting to copper house  pipe,  you must install dialectric fittings to stop corrosion,

I have seen sacrficial anodes in radiator caps   as well as same on out board motors to prevent aluminum failure on outboards,

What is recommended  when using Aluminum heads  and  even aluminum radiators,   ( forgive typing, Im 63 an cantr see to well ) 

Thank  Guys   




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Re: Aluminum Heads Issues with dis similars metals. Corrosion
« Reply #1 on: September 29, 2017 - 11:39:56 pm »
Sacrificial Anodes should be considered standard practice....
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Online GoodysGotaCuda

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Re: Aluminum Heads Issues with dis similars metals. Corrosion
« Reply #2 on: September 30, 2017 - 08:48:45 am »
Not an Expert, Yet I am a mechanical contractor, and even basic  water heater hook ups, Steel  take  water fitting to copper house  pipe,  you must install dialectric fittings to stop corrosion,

I have seen sacrficial anodes in radiator caps   as well as same on out board motors to prevent aluminum failure on outboards,

What is recommended  when using Aluminum heads  and  even aluminum radiators,   ( forgive typing, Im 63 an cantr see to well ) 

Thank  Guys   

I do not believe anodes are used in OEM applications to-date. The Hemi comes with aluminum heads, timing cover, water pump housing and radiator core. OEMs are achieving their corrosion resistance via the coolant itself, but that is not saying that you shouldn't install an anode.

It's got me thinking where I could stick one..
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Offline 340-FOUR- BARRELL

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Re: Aluminum Heads Issues with dis similars metals. Corrosion
« Reply #3 on: September 30, 2017 - 01:30:37 pm »
I've replaced radiator drain plugs with sacrificial anodes intended for this purpose. 

Offline E-Body Products

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Re: Aluminum Heads Issues with dis similars metals. Corrosion
« Reply #4 on: October 05, 2017 - 06:30:03 am »
Any place to buy the anodes?


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Offline Beekeeper

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Re: Aluminum Heads Issues with dis similars metals. Corrosion
« Reply #5 on: October 05, 2017 - 10:05:44 am »
I use coolant designed for different metals but I think the anode is great insurance. My Old Vette has an expansion tank which is aluminum and not always fill completely full. I had it out a few weeks back and was shocked how much corrosion was inside where air was exposed. I need to do this as well or I'm gonna have big trouble someday.

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Re: Aluminum Heads Issues with dis similars metals. Corrosion
« Reply #6 on: October 05, 2017 - 11:35:28 am »
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WS27L8G 68 Coronet R/T Convertible  PP1 Bright Red, Project
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Offline 340-FOUR- BARRELL

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Re: Aluminum Heads Issues with dis similars metals. Corrosion
« Reply #7 on: October 05, 2017 - 08:37:52 pm »
I buy anodes from Summit Racing. Summit sells the radiator drain plug type. $12-$20.

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Re: Aluminum Heads Issues with dis similars metals. Corrosion
« Reply #8 on: October 05, 2017 - 08:41:15 pm »
I buy anodes from Summit Racing. Summit sells the radiator drain plug type. $12-$20.

And the place I linked sells it for $3.35.....   
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WS27L8G 68 Coronet R/T Convertible  PP1 Bright Red, Project
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Offline jimynick

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Re: Aluminum Heads Issues with dis similars metals. Corrosion
« Reply #9 on: October 05, 2017 - 09:04:34 pm »
And the place I linked sells it for $3.35.....
'kin' A! Thx.  :cheers:

Offline 340-FOUR- BARRELL

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Re: Aluminum Heads Issues with dis similars metals. Corrosion
« Reply #10 on: October 05, 2017 - 10:19:12 pm »
'kin' A! Thx.  :cheers:
Should be noted their anodes are priced from $2.85-$30.77 depending on the anode you need. Do comparisons and see what is the best bang for the buck! Summit has never let me down and when you combine the anode with other stuff the shipping is free if total is over $99.00. I usually get most of the Summit parts the next day after ordering. For instance yesterday, I ordered a lower radiator hose and four Gabriel Shocks for my 73 Challenger and the parts were delivered in less than 24 hours. No shipping costs. Helps to live in sunny California maybe.

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Re: Aluminum Heads Issues with dis similars metals. Corrosion
« Reply #11 on: October 05, 2017 - 11:16:50 pm »

True... And $3.35 gets you the same one summit sells for a radiator... $30.77 gets you one over an inch in diameter & six inches long.....

If you select USPS Priority Mail, orders under $100.00 cost between $3.95 to $11.95 to ship (depending on weight and distance), while those over $100.00 ship free.
JS27N0B 70 Challenger R/T Convertible  FJ5 Sublime, Show Poodle w/90,000 miles since resto
WS27L8G 68 Coronet R/T Convertible  PP1 Bright Red, Project
RM21H9E 69 Road Runner Coupe R4 Performance Red, Sold...
5H21C  65 Falcon 2 dr Wagon... Dog Hauler...