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Engine Harness, 454ci-HD (1977 Blazer; 1977 C10; 1977 K10)

Item EK-61-395452-1
4 Reviews of similar
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$404.99

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      Product Information

      Features, Description, Q&A

      Features

      • Factory Fit Engine Harnesses Are Manufactured According To Original General Motors Specifications
      • Each Part Number Is Fully Assembled, Taped, And Ready To Install Upon Arrival
      • This Harness Plugs Into The Firewall In The Factory Location And Follows Original Routing In The Engine Compartment
      • A Combination Of The Engine And Front Light Harness Accomplishes Most Functions Under The Hood Of An Early GM Vehicle
      • Engine Harness Design Varied Significantly Year To Year, Typically Containing Wiring For Ignition System, Starter, Heater Blower, And Temperature/Oil Pressure Sender Wires If Applicable
      • Some Vehicles Use A Capillary Tube To Provide An Oil Pressure Reading, Which Is Not Included In The Wiring Harness
      • Ignition Circuits Are Designed With Resistance For Ignition Points To Extend Their Life, While Modern Electronic Or High Energy Ignition Systems Require A Modified Harness Without Resistance
      • Consult Factory Service Manual Or Sales Team To Confirm Required Circuits And Part Numbers For Your Project
      • Fits 1977 Blazer; 1977 C10; 1977 K10

      Description

      Engine Harness Overview. The 77TRK Enghrns- 454-HD is an engine wiring harness designed specifically for early GM vehicles, particularly 1977 Chevrolet trucks equipped with a 454 cubic inch engine and heavy-duty chassis. It ensures proper connectivity for vital engine functions such as ignition, starter, and gauges, providing reliable electrical performance essential for vehicle operation. This harness plugs into the firewall at the factory location and follows the original engine compartment routing for a factory-accurate installation.

      Construction and Appearance. This harness is fully assembled and taped according to original General Motors specifications. It features quality wiring and connectors to match factory standards, suitable for use with ignition points or optional High Energy Ignition (HEI) systems by using modified harness versions. The harness is built to be durable and ready for immediate installation with factory-style routing.

      Installation. Installation is straightforward, as the harness plugs into existing factory connection points and follows original routing under the hood. No drilling or vehicle modifications are typically required, making it ideal for restoration or restomod projects seeking authenticity or performance upgrades.

      Application. Specifically designed for 1977 Chevrolet Blazer, C10, and K10 trucks equipped with a V8 454 ci engine and heavy-duty chassis with a single oil pressure switch connection. This harness fits these models and configurations without additional customization.

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      4.8

      Reviews of similar Classic Electrical Products (4)

      Questions & Answers

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