Revitalize your classic ride with the GM 1974 Engine Harness from Lectric Limited, specially designed for 454 C.I. automatic transmission vehicles with H.E.I. and factory gauges. This premium-quality wiring harness ensures optimal connectivity and performance, making it an essential upgrade for enthusiasts looking to enhance their vehicle's reliability and power. Avoid the hassle of unreliable connections or outdated wiring alternatives; invest in a product that guarantees superior durability and functionality.