Electrical System

After removing the 60 year old wiring harness from under the dash and seeing the condition of the connectors I was surprised the car hasn't caught fire yet. The old harness connectors were dried out and cracking and the wires were stiff as a coat hanger. The main power wire from the battery to the ignition switch was hanging on by only a few strains and a portion of the fuse box was missing leaving wires exposed.

The wiring was replaced with model specific reproduction harnesses. This includes headlight feed, engine feed, under dash, headlight extensions and the harness going to the rear of the car. I replace the ignition, turn signal and heater fan switch.

I made some required changes to the harness since I will be running a V8 with EFI instead of a six cylinder with a carburetor. I also have one-wire alternator with internal regulator instead of generator with external regulator. While I had the harness unwrapped I added an extra wire going to the alternator for the dash idiot light if in case I change over to a other style alternator.

A junction box is mounts under the battery tray to hide all the extra wiring that would be going to the battery or starter solenoid. Another junction box is on the other side of engine bay to feed the headlight and cooling system relays.

I added an extra fuse block under the dash to feed the ignition and EFI. The PINK resistor wire was unplugged from the ignition switch and replaced with regular wire going to the fuse block. The fuses are now hot only when the key is in the "run" position.