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Discussion Starter #1
I've heard from some people that anti-seize can be used for the heat transfer paste for HEI modules, due to its high nickel content. Can anybody back that up?

Can you buy the white stuff seperate from a new module? I've got a different module that I need to install on my truck, but I don't have the paste.

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1969 Base Camaro
Vortec 355, Perf. RPM, Demon Carb., TH-400
All sheetmetal is NOS GM
See my webpage at: http://www.geocities.com/compuboy007/
 

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You should be able to buy it at your local parts store or Radio Shack.

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'69 RS Camaro
355 5-speed 4.11
 

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I would stay away from anti-seize. Pick up a tube of dielectric grease, that's what most modules come with. It's also good to use in electrical connectors/bulb sockets that are exposed to weather conditions.

Drew
 

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Discussion Starter #4
I've also heard of the option to use dielectric grease...but is it really good heat conductor? None of the ingredients indicate that it is.

I believe the white paste has a high zinc content, something which dielectric grease does not have (at least the stuff from Permatex doesn't). This allows the thermal conduction.

Maybe I'm way off base.

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1969 Base Camaro
Vortec 355, Perf. RPM, Demon Carb., TH-400
All sheetmetal is NOS GM
See my webpage at: http://www.geocities.com/compuboy007/
 

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Dialectric grease is typically used to protect electrical connections from oxidation. Heat sink compound is an electrical insullator that conducts heat. I thought it was a silicon based substance. Radio Sh!&# sells little tiny tubes and larger tubes of the heat sink compound - which is what you want. I would not use dialectric grease for anything other than doping a connection to prevent oxidation. It is not designed to transfer heat.

-dnult
 

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Discussion Starter #7
I agree with you.

According to the MSDS for the Radio Shack heat sink compound, it does contain zinc for heat conduction.

The dielectric grease has nothing of this type. Even the silicone used in each are not the same.

However if the dealer used it like Don said, it must work to some degree. However, for 1.99 at Radio Shack, I can get a good-sized tube that I would have more confidence in.

The less heat I have in that module, the more current will get to the coil...

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1969 Base Camaro
Vortec 355, Perf. RPM, Demon Carb., TH-400
All sheetmetal is NOS GM
See my webpage at: http://www.geocities.com/compuboy007/
 

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Aftermarket modules I've installed seem to use clear dielectric grease, at least that's what it looks like.

I keep a tube of the Radio Shack heat sink paste around.
David

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67 RS 327 original owner. 69 Camaro Vintage Racer, 65 Lola T-70 Chev SB Can-Am Vintage Racer
 
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