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Old 01-14-2012, 07:44 PM
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HEI module concerns:

So, apparently the 4-pin module is still available from ac/delco----part # D 1906

1) Who/where is this made?
a) If made somewhere else, do you have any direct (or even indirect) experiences, comments about it's quality?

2) Is it the exact, same design as modules produced from 1974-1980ish (or whenever the switch to 7 pin computer modules happened)?

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Old 01-14-2012, 08:23 PM
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You're wanting an original, genuine-GM, made-in-America module?
If so, why?
There are better modules, still made in America, end even if this is a perfect restoration you're working on, nobody is ever going to check the module.
Plenty of aftermarket choices, most of them better than genuine GM.
Back in the late '70s we began to discover the real-world RPM limits of the stock modules. None were useful above 5500. Retrofitting dual-point distributors was necessary for serious engines. Why you'd want that now?
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Old 01-14-2012, 08:52 PM
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Well, for right now i'm just trying to put together dependable transportation. So right now i feel better if it's original genuine gm.


That aftermarket stuff----i.e., msd, accel, mallory etc. may be better but i don't know anything about them.

Dependability and durability, not performance are my main concerns right now.

Last edited by against all odds; 01-14-2012 at 09:00 PM.
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Old 01-14-2012, 09:18 PM
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Where in the world do you think genuine real-world GM parts are made and by whom? NOT GM, but companies licensed by GM. Mostly in Mexico and overseas. You're over-thinking things drastically regarding an HEI module.
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Old 01-14-2012, 09:23 PM
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IIRC the delco d1906 modules have been made in singapore as they have been for years, along with many other popular ones, like 7+ 8 pins also.
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Old 01-14-2012, 09:59 PM
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Buy 2 and keep one in the glove box.
Only takes a couple of minutes to replace one.

I have a couple of spares----they are kept in my garage, but I don't worry too much about one failing.

I have been the victim of a failing module more than once, but not often enough to be too concerned about it.

I get wound up tighter over a starter, water pump, or alternator.
Something that I have to get under the car or get too dirty when I don't want to.

I'm also prone to call a tow truck for something I do not wish to deal with at the time.
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Old 01-15-2012, 09:49 AM
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Fair enough; In that case can we discuss your experiences with aftermarket brands and durability/reliability compared to original gm?
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Old 01-15-2012, 10:25 AM
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Read This. It is pretty informative.
http://www.reviews.ebay.com/HEI-Igni...00000002053885

Link did not go to the article I was trying to present.
So, click on the link above and Look at the guide section on the page that opens.
On the category line in the first paragraph, click on more categories.
Then click on E bay motors
Then, type in the big blue search bar : " GM HEI" and hit search
The article you should read is the second one on the list.
It will be called "HEI Ignitions-A Primer "

Last edited by latech; 01-15-2012 at 10:37 AM.
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