The Classic Update Kit is designed for projects that need more circuits and flexibility than the original factory harness could offer. Each kit provides everything required to rewire your vehicle from headlight to tail light, while supporting today’s most popular upgrades such as electronic fuel injection (EFI), aftermarket gauges, and other performance or convenience modifications.
Features:
Modern ATC Fuse Panel & Wiring:
Includes an upgraded ATC fuse panel and fuses with durable GXL wire used throughout. Every wire is clearly labeled every 3–5 inches for easy installation and troubleshooting.
Pre-Built Dash Harness:
Comes pre-assembled with our exclusive gauge cluster disconnect system, designed for compatibility with both stock and aftermarket instrument panels.
Engine & Front Light Harness:
Features extra-long leads for flexible custom routing and compatibility with updated engine and transmission combinations. Includes original-style bulkhead connectors for a clean, factory-style finish.
Power Accessory Integration:
A six-way power accessory plug provides a convenient power source for aftermarket accessories and electrical add-ons.
Rear Body Wiring:
Includes extended-length leads to accommodate custom routing in modified or restored vehicles.
High-Output Charging System Support:
Equipped with a 175-amp mega fuse kit and 6-gauge charge cable to handle high-output alternators and internally regulated charging systems.
OEM-Quality Components:
Supplied with original-style replacement connectors, terminals, and lamp sockets to ensure a reliable, factory-quality installation.
Upgraded Switches & Adapters:
Includes a 26-amp headlight switch with an internal circuit breaker, a new floor dimmer switch, and a dash harness connector compatible with ’69 and later GM steering columns. A mating connector and terminals are included for easy adaptation to late-model columns.
Modern Ignition Compatibility:
Comes with a replacement ignition switch designed for use with HEI and EFI systems.
