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Old 04-18-2007, 04:00 PM
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4.3 Distributor computer to non computer

When doing away with the computer on a '94 vortec 4.3 engine, how can I still use the computerizied distrubutor? I was told that all that I needed was to keep the coil wire to the dist. module hooped up and forget the otherside of the module, then run a hot wire to the coil, set the timing to about 18deg. and fire it up and go. Will this work or not? It sounds a little screwy to me.

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Old 04-18-2007, 05:02 PM
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Doc here,

It will run...

BUT have no performance..It will have no EST, which controls the timing advance/ retard..which is needed to "Keep up" with the changing demands of the engine.

You need to go to a pre 1980 GM HEI, or an aftermarket with advance features..(either vacuum or electronic, or mechanical) The pre 80's HEI is the cheapest route..

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Old 04-18-2007, 08:51 PM
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Quote:
Originally Posted by grumpy1
When doing away with the computer on a '94 vortec 4.3 engine, how can I still use the computerizied distrubutor? I was told that all that I needed was to keep the coil wire to the dist. module hooped up and forget the otherside of the module, then run a hot wire to the coil, set the timing to about 18deg. and fire it up and go. Will this work or not? It sounds a little screwy to me.
You need to use a "conventional" HEI distributor for the 4.3L V6. There are aftermarket units, or you can use a distributor from a 1985 Astrovan. They used a carb and conventional HEI. Do not use a 200-229 Chevy V6 distributor as they aren't even fire. The computer controlled unit won't work.

Bob
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Old 04-18-2007, 09:15 PM
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Thanks for the replies. but there is not enought room for the HEI. If I cannot get the orginal to work I will have to go aftermarket. The fellow who said it would work races his, he said he used about 36deg. advance for it. If that's true or not I do not know.

Doc, the 4.3 was not made before '80. The 229 and 231 will not work I am told. The early 4.3 dist. were big, like all the HEI's.

I have read some threads from a guy called Ignition Man. He seems to have done something with these but I don't know what. Thanks.
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Old 04-18-2007, 10:27 PM
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Doc here,

Oops ! My BAD!!! forgot about the 4.3 was a V6.. always thinking 8's..

Sorry about my wrong info..


MSD has some good solutions for this..go to their website and have a look at the product line..

ALSO, the guy your talking about is Dave's Small body HEI's in Nevada, just do a search under that and go to his site for what he provides..

Sorry for the confusion..

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Old 04-19-2007, 12:25 PM
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Thanks Doc, I think he has the best route for me.
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Old 04-19-2007, 05:37 PM
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Doc here,

Your welcome

Let us know what you come up with.

Doc
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