1966–1967 Chevrolet II / Nova Wiring Harness (Direct Fit)
The compact Chevy II and Nova of the mid-1960s are icons of lightweight performance—and with a Painless Performance 21-Circuit Direct-Fit Chassis Harness, they can be as reliable as they are fast.
Designed for a factory-style installation, this harness includes most original connectors pre-installed and every wire color-coded to GM standards and printed with circuit identification for total clarity. Each kit is divided into three logical sections—engine, dome light, and rear—making installation straightforward and service-friendly.
With provisions for factory options and modern upgrades like electric fuel pumps, high-output alternators, and A/C systems, this is the ideal electrical foundation for your 1966–1967 Chevy II or Nova restoration, restomod, or drag build.
Why Choose Painless for Your Nova Build
Designed specifically for 1966–1967 Chevy II & Nova
Most factory connectors pre-installed — plug it in and go
GM color-coded & printed wires simplify troubleshooting
Includes bulbs, clamps, and switches for a complete install
Compatible with stock or upgraded electrical systems
Modern fuse protection with blade & maxi fuses
Backed by the Painless lifetime warranty and U.S.-based support
21-Circuit Direct-Fit 1966–1967 Chevy II / Nova Chassis Harness (P/N 20110)
The Painless 21-Circuit Direct-Fit Harness gives your Nova a modern, safe, and organized electrical system while retaining all the correct factory connections and layout. Out of the box, it’s ready to plug into your car’s existing switches, lighting, and accessories—no splicing or guesswork required.
Each harness includes a custom mounting plate for the fuse block, 12 new dash bulbs, two door-jamb switches, and eight harness clamps for a clean, OEM-style installation.
Key Features:
21 total circuits / 12 fuses with horn relay and maxi fuse
Factory-fit design for 1966–1967 Chevy II & Nova models
Pre-installed GM connectors for plug-and-play simplicity
GM color-coded wiring printed every 12 inches
Three-section harness (engine, dome light, rear) for clean routing
Includes A/C power wiring and high-output alternator pigtail
Works with carbureted or standalone EFI engines
Includes Circuits For:
A/C & Heat, Accessory/Cigarette Lighter, Backup Lights, Brake Lights, Charging, Dome Light, Electric Choke, Emergency Flashers, Fan Relay Activation Power, Fused Power Source, Glove Box Light, Headlights, Horn (Relay), Ignition Coil, Instrument Panel Lighting & Gauges* (Brake Warning, Charge, Fuel, Oil, Tachometer, Temperature), Park Lights, Radio/Clock (Constant & Switched), Starting, Tail & License Plate Lights, Turn Signals, and Wipers.
Connections Included:
Headlight switch, headlight connectors, fuel gauge connector, dimmer switch, brake switch, heater switch, blower resistor, wiper switch, backup switch, horn, dash light sockets, and warning light sockets.
Perfect For:
Owners wiring a 1966 or 1967 Chevy II / Nova who want a factory-correct installation with modern reliability and additional circuits for upgraded accessories or performance parts.