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Find Wiring Harnesses for your Corvette

Engine Wiring Harness 454ci With Automatic Transmission (1973 Corvette C3)Find parts that fit my vehicle

Item EK-25-124292-1
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$344.99

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      Product Information

      Features, Description, Q&A, Specs & Installation

      Features

      • All Big Block With Automatic Transmission
      • Requires Use Of VIG7074TCS To Complete Wiring To T.C.S. Switch Located In Passenger Side Cylinder Head
      • Connects To Carburetor Idle Stop Solenoid
      • Connects To Dash Harness Connection At Firewall
      • Connects To Ground To Bell Housing Bolt
      • Connects To Heater Blower Motor For Cars Without A/C
      • Connects To Heater Blower Motor Ground Terminal For Cars Without A/C
      • Connects To Hood Ajar Switch
      • Connects To Horn Relay
      • Connects To Ignition Coil Positive Terminal
      • Connects To Starter Solenoid
      • Connects To Temperature Controlled Spark Solenoid On Intake Manifold
      • Connects To Temperature Controlled Spark Switch Harness Connection In Passenger Side Cylinder Head
      • Connects To Transmission Kickdown Solenoid On Transmission
      • Connects To Transmission Kickdown Switch At Gas Pedal
      • Connects To Windshield Washer Pump
      • Connects To Windshield Wiper Motor
      • Connects To Windshield Wiper Motor Ground Terminal
      • Fits 1973 Corvette C3

      Description

      Engine Wiring Harness Overview. The Engine Wiring Harness 454ci With Automatic Transmission is designed to provide seamless electrical connectivity for big block engines equipped with automatic transmissions. This harness integrates multiple critical components, including ignition, starter, transmission, and windshield systems, ensuring reliable operation of your vehicle’s electrical functions. It is essential for maintaining the proper function of the engine and transmission electrical circuits while keeping the wiring organized and secure.

      Construction and Appearance. Built from high-quality wiring materials, the harness features durable insulated wires with factory-style connectors designed for a perfect fit and long-lasting performance. The harness includes terminals for all relevant connections such as solenoids, switches, relays, and motors. The wiring bundle is wrapped and protected with a smooth black sheath to resist wear and provide a clean, professional appearance under the hood.

      Installation. Installation requires moderate automotive wiring knowledge and typically does not require drilling or cutting of original components. The engine harness plugs directly into existing connectors, facilitating a straightforward replacement or upgrade with minimal modifications needed.

      Application. This wiring harness fits the 1973 Corvette C3 equipped with a big block engine and automatic transmission. It is specifically designed for this model year to accommodate the factory electrical layout and T.C.S. switch integration on the passenger side cylinder head.

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Tech Specs

      Questions & Answers

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