1966 Valiant Engine wiring harness

Good plan.

Here's a little summary of the wiring concept. The car has two power sources, the alternator and the battery. They're connected together with the feeds to various circuits at a welded junction. So all of those wires are 'hot' when the battery is connected.

1745280021812.png

The headlight wires are typically bundled into the harness running along the driver side fender. They get power direct from the main splice and there is a circuit breaker inside the headlight switch. After that they are their own circuit. Th parking lights get power through a fuse.

The highbeam and lowbeam wire colors may be different but functionally its like this.

1745280377926.png