The American Autowire 510158 Classic Update Kit is a complete, vehicle-specific wiring harness system designed for 1968–69 Chevrolet Chevelle, including El Camino and station wagon models (with an add-on kit required for those variants). This kit is ideal for restorers and custom builders who want to modernize their vehicle’s electrical system while maintaining compatibility with original components.
Key Features
- 18-Circuit Wiring System: Supports modern electrical demands including EFI, electric fans, power accessories, and upgraded lighting.
- Compact ATO-Style Fuse Panel:
- Fully enclosed with labeled circuits and fuse ratings
- Mounts in the stock location with minimal modification
- GXL Wiring Throughout: High-quality, heat-resistant wire labeled every 3–5 inches for simplified routing and identification
- Pre-Built Dash Harness:
- Exclusive gauge cluster disconnect system
- Compatible with stock and aftermarket gauges (e.g., Autometer, Dakota Digital, Classic Instruments)
- Engine & Front Light Harness:
- Extra-long leads for custom routing
- Includes connectors for HEI distributors, internally regulated alternators, and electric fan relay triggers
- GM bulkhead connectors included for easy installation
- Rear Body Harness:
- Includes wiring for backup lamps, stop/tail lights, license plate lamp, fuel tank sender, and dome light
- Longer leads allow for stock or custom routing
Compatibility & Integration
- Steering Columns: Connectors compatible with 1969+ GM columns and most aftermarket columns; adapters included
- Lighting & Switches:
- New headlight switch with 26–30 Amp internal circuit breaker
- New floor dimmer switch
- Turn signal and hazard flashers
- Horn relay mounted on the fuse panel
- Accessory Support:
- Six-way power accessory plug for power windows, seats, cruise control, fuel pump, and more
- Supports aftermarket HVAC systems and wiper upgrades
What’s Included
- Original-style connectors, terminals, and lamp sockets
- Dash harness, engine/starter harness, front light kit, rear body kit, and park/headlamp connection kit
- Replacement ignition switch compatible with HEI and EFI setups
- 175-amp mega fuse kit with 6-gauge charge cable for high-output alternators
- Full-color schematics and step-by-step instructions
Vehicle Fitment
Compatible with:
- Chevrolet: Chevelle, El Camino, Station Wagon 1968–69
