HEI Spark plug wire?? - Chevelle Tech

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post #1 of 10 (permalink) Old Sep 13th, 05, 8:30 PM Thread Starter
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Question HEI Spark plug wire??

Can anyone post a diagram of the firing order for a small block with a HEI distributor. I know the correct firing or, just not where to hook the wires back onto the cap. I up graded my 350 with a new cap and the coil is on top of the cap, but the only diagram I have to hook back up the spark plug wires, is for a points distributor. Will this diagram work??? Thanks for the help.. B.
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post #2 of 10 (permalink) Old Sep 13th, 05, 8:41 PM
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Re: HEI Spark plug wire??

The firing order is the same...
18436572 clockwise
Where #1 wire terminal is on the cap depends upon where the rotor was pointing and the position of #1 cylinder when the distributor was installed.

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post #3 of 10 (permalink) Old Sep 13th, 05, 9:26 PM
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Re: HEI Spark plug wire??

What Bill said, firing order doesn't change. Usually #1 is around the 4-5 o'clock position looking down on the distributor from the front. From there, like Bill said, clockwise around -8436572. #2 would end up being around the 1-2 o'clock position. No guarantee, that's just normal position.

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post #4 of 10 (permalink) Old Sep 13th, 05, 9:46 PM
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Re: HEI Spark plug wire??

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post #5 of 10 (permalink) Old Sep 13th, 05, 10:49 PM
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Re: HEI Spark plug wire??

Hey Dean, that isn't for ALL HEI's is it? I have a GM hei on mine and i hooked the wires up like that when i first got it (about 6 months ago) and i couldn't start the car. I moved the wires one spot to the left (looking down on the cap, clockwise) and it fired up and runs perfect.

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post #6 of 10 (permalink) Old Sep 13th, 05, 10:54 PM
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Re: HEI Spark plug wire??

Quote:
Originally Posted by rianbechtold
Hey Dean, that isn't for ALL HEI's is it? I have a GM hei on mine and i hooked the wires up like that when i first got it (about 6 months ago) and i couldn't start the car. I moved the wires one spot to the left (looking down on the cap, clockwise) and it fired up and runs perfect.
Your dist is off probably a couple of teeth, since it runs and you can set the timing, leave it alone.

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post #7 of 10 (permalink) Old Sep 14th, 05, 1:18 AM Thread Starter
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Re: HEI Spark plug wire??

Took the advice, and I got the damm thing to fire... HURRAY, but it is still running a little ****ty. My question now is, do I just have to tweak the timing, and adjust the distributor a little here and there? Would the car run at all if I was not at or near top dead center?
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post #8 of 10 (permalink) Old Sep 14th, 05, 7:21 AM
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Re: HEI Spark plug wire??

I replied to you post in chevelle tech 2005. Yes it will run if close enough. Set the timing with a light and you should be all right.

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post #9 of 10 (permalink) Old Sep 14th, 05, 8:57 AM
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Re: HEI Spark plug wire??

It doesn't really matter which position #1 is in as long as the distributor can be rotated enough without interference and the wires will still reach.

You could start with #1 anywhere on the cap but the vacuum advance might hit on the firewall or the wires might be behind the dist. but you could still get the timing correct.
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post #10 of 10 (permalink) Old Sep 14th, 05, 12:29 PM Thread Starter
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Re: HEI Spark plug wire??

Thanks for all the info DEAN, really helped me out, the vacum advance is sitting around the 7 o'clock position right now, so hopefully it will be alright. Thanks for the reply's.
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