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Old 07-12-2010, 10:58 PM
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Kill Switch/Wiring. HELP!

I have a 1976 Chevy Blazer and i would like to put a kill switch in it and run it to the coil. There's only one coil and i don't know which color wire i should splice for the kill switch. There is a Red, Black, and a Brown wire, which one should i use for the switch and what gauge should i use to run it all.

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Old 07-16-2010, 06:05 PM
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i believe it sould be the red wire
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Old 07-16-2010, 08:51 PM
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Thank you Poniacjosh, and would 10 gauge wire work ok?
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Old 07-17-2010, 04:57 AM
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Quote:
Originally Posted by 1976 K-5
I have a 1976 Chevy Blazer and i would like to put a kill switch in it and run it to the coil. There's only one coil and i don't know which color wire i should splice for the kill switch. There is a Red, Black, and a Brown wire, which one should i use for the switch and what gauge should i use to run it all.
Match the wire gage to the same size as the original 12V supply wire that plugs in at the HEI coil, on top of the distributor. I believe it's 10 or 12 gage.

Soldering and shrink wrap is preferred over a crimped connection when dealing w/something as critical as the ignition. If the splice fails- you are up the road w/o power. If you DO crimp it, still use shrink wrap and quality terminals installed w/a good crimping tool.
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Old 07-17-2010, 05:49 AM
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Quote:
Originally Posted by 1976 K-5
I have a 1976 Chevy Blazer and i would like to put a kill switch in it and run it to the coil. There's only one coil and i don't know which color wire i should splice for the kill switch. There is a Red, Black, and a Brown wire, which one should i use for the switch and what gauge should i use to run it all.

Is the coil a stand alone, meaning on the fire wall? Look at the coil, it is marked + or - , If I were doing it I would interrupt the NEG - side. This would require you to run both wires from your kill switch out to the coil. Remove the NEG - wire, cut the terminal off and solder one of the kill switches wires to that. Then the other kill switch wire, install a terminal like the one you remove above, and attach it to the coil NEG - pole on the coil, your done.
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Old 07-17-2010, 02:49 PM
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Quote:
Originally Posted by 1976 K-5
I have a 1976 Chevy Blazer and i would like to put a kill switch in it and run it to the coil. There's only one coil and i don't know which color wire i should splice for the kill switch. There is a Red, Black, and a Brown wire, which one should i use for the switch and what gauge should i use to run it all.
A 76 Blazer would have an HEI distributor stock. Look at the cap - one of the wires is labeled "BATT" and the other "TACH". Splice a toggle switch into the BATT wire, turn it off to kill the ignition. This should take about five minutes.
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