The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Converting coil style ignition to HEI........what is involved?

**Denee007** · 03-12-2013, 08:46 AM

Hi, I can't tell you what your old wires were for, but when I installed a new wiring harness from hotrodwires, one wire was dedicated as the Hot wire to go to the BAT side of the dist cap, the other terminal was for Tach. In essence, a full 12 volt source needs to go to the dist. I suppose your dist will be grounded via the engine and engine to chassis. So with a test light you could locate your hot wire, which should show 12 volts on a VOM.
I'm sure someone with much more knowledge than I will chime in soon; )
Dne'
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03-12-2013, 08:46 AM	#2
Denee007 Senior Member Join Date: May 2011 Location: Cypress, Tx. Posts: 1,504	Re: Converting coil style ignition to HEI........what is involved? Hi, I can't tell you what your old wires were for, but when I installed a new wiring harness from hotrodwires, one wire was dedicated as the Hot wire to go to the BAT side of the dist cap, the other terminal was for Tach. In essence, a full 12 volt source needs to go to the dist. I suppose your dist will be grounded via the engine and engine to chassis. So with a test light you could locate your hot wire, which should show 12 volts on a VOM. I'm sure someone with much more knowledge than I will chime in soon; ) Dne' Posted via Mobile Device __________________ '72 Ford Bronco project(July 17 2021-?) https://67-72chevytrucks.com/vboard/...d.php?t=828015 59 Apache (sold 6-25-2021) 67 Ford Mustang (re-restored after Harvey) 1968 Jeep Cj5 (2-8-2020 to present) 1992 Jeep Yj (8-17-20 to present) (Jurassic build) www.Classiccarsandtools.com Last edited by Denee007; 03-12-2013 at 08:46 AM. Reason: Spell