62 C50 wire harness with alternator and hei

Discussion in '1960-1966' started by Fossilcrusher, Mar 5, 2024.

  1. Fossilcrusher

    Fossilcrusher Member

    Mar 5, 2024
    Hi, I'm looking at the engine harness for hei #52-121
    Can I use this on my new hei distributer as is or do I need to change the dash harness to accommodate a larger gage wire for hei vs coil/points?

    Also looking at eliminating external voltage regulator.
    They list a harness w/alternator.
    Will this harness #52-227 work for internally regulated newer style alternator?

    Or... do I need to get the factory harness for generator and then get the generator to alternator conversion harness to convert to internally regulated alternator?
    I know alternator was a option in 62 so not sure if this would work.

    Thank you
  2. Woogeroo

    Woogeroo Member

    Apr 27, 2003
    Seeing the USA in my Chevrolet!
    american autowire has a harness for that.

    classic parts sells a harness for that, which I think is or was made by american autowire.

    It depends on which dash you have with gauges or with warning lights I think.

    You may have to call them on the tech line and ask classic parts... or American Auto wire, they have a email tech address.

    Mad Electrical has some great tech to walk you through it.


    DELCO REMY models 10SI & 12SI alternators
    Visual Identification and Differences
  3. Fossilcrusher

    Fossilcrusher Member

    Mar 5, 2024
    Thank you Mr. Woogeroo. I have ordered the original generator wire harness from American Autowire, waiting on that now.
    Also ordered the internally regulated alternator conversion harness and the HEI converted engine harness.
    I installed a 366 into my 62 C50. Just have to sort out which alternator and brackets. I have the dual pulley alternator that came with the engine but it won't fit with the brackets I have.
    Thank you for all of the information and for your response.
    Woogeroo likes this.

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