American Autowire 31520 Engine Harness for 1970–72 Chevrolet Trucks (V8 and Automatic Transmission)
The American Autowire 31520 is a high-quality Factory Fit engine wiring harness designed specifically for 1970–72 Chevrolet trucks equipped with a V8 engine and automatic transmission. This harness is built to original GM specifications, making it ideal for restorers seeking authenticity and reliability.
Key Features:
- OEM Accuracy: Manufactured using original GM schematics, including correct wire colors, gauge sizes, and factory-style connectors.
- Fully Assembled & Pre-Taped: Ready to install right out of the box, minimizing installation time and ensuring a clean, professional finish.
- Firewall Integration: Plugs directly into the factory firewall location and follows original routing through the engine compartment.
- Comprehensive Circuit Coverage:
- Ignition system
- Starter
- Heater blower motor
- Temperature and oil pressure sender wires (if applicable)
Compatibility Notes:
- Vehicles using a capillary tube for oil pressure readings will not require wiring for that function.
- For vehicles with ignition points, the harness includes resistance wiring to extend point life.
- If your vehicle has been upgraded to a High Energy Ignition (HEI) system, a modified harness without resistance is recommended.
Vehicle Compatibility:
- 1970 Chevrolet Truck
- 1971 Chevrolet Truck
- 1972 Chevrolet Truck
- V8 engine with automatic transmission
Installation Tips:
- A combination of the engine harness and front light harness typically covers most under-hood wiring needs.
- Always consult your factory service manual to confirm circuit requirements and ensure proper installation.
Specifications:
- Part Number: 31520
- Category: Chevrolet Original Reproduction and Restomod Wiring
- Made in the USA
