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Old 10-31-2018, 07:03 AM   #1
Bullshark
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Default 1935 Ford flathead V8 aluminum heads

I have to repair as small crack in one of my aluminum heads on the 35 ford coupe. Can someone tell me if those heads were originally factory painted along with the rest of the engine?
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Old 10-31-2018, 07:34 AM   #2
deuce lover
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Default Re: 1935 Ford flathead V8 aluminum heads

No paint from the factory.Commercial applications which were cast iron were painted.

Last edited by deuce lover; 10-31-2018 at 07:47 AM.
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Old 10-31-2018, 02:00 PM   #3
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Default Re: 1935 Ford flathead V8 aluminum heads

Quote:
Originally Posted by deuce lover View Post
No paint from the factory. Commercial applications which were cast iron were painted.
Thanks, makes the weld repair a lot more challenging.
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Old 10-31-2018, 02:05 PM   #4
JSeery
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Default Re: 1935 Ford flathead V8 aluminum heads

Depending on where the crack is there could be additional issues. If there is a lot of corrosion inside/behind where you are attempting to weld it will not react well to the heat of the weld. It is possible to end up with a bigger problem.
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Old 10-31-2018, 02:18 PM   #5
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Default Re: 1935 Ford flathead V8 aluminum heads

I bought some special high strength aluminum epoxy on Amazon and used it to repair some broken bolt bosses on a Navarro Universal intake manifold. Two years down the line, it's still holding. I don't know if it would work on heads; just suggesting a possible alternative to welding, which, as "JSeery" said, can make a big problem out of a little problem quite quickly on old aluminum castings.
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Old 10-31-2018, 06:57 PM   #6
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Default Re: 1935 Ford flathead V8 aluminum heads

It is a small hairline crack seeping coolant along the line illustrated by the blue mark on this picture. Turns out it is positioned directly over a coolant port on the block. I toyed with the idea of using one of those new nanotechnology fiberlock head, gasket & block repair products I have heard has had some success. Thinking welding would be a more reliable fix.





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Old 10-31-2018, 08:14 PM   #7
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Default Re: 1935 Ford flathead V8 aluminum heads

IMO I would reconsider the welding option, it would be a shame to destroy that nice of a head. But that is just me.
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