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1968 Dodge 440 HEI Ignition Wiring Diagram and Conversion Guide 2026

"Upgrading a classic 1968 Dodge 440 big-block engine with a High Energy Ignition (HEI) system remains one of the most effective modifications for modern classic car owners. As automotive enthusiasts navigate vehicle builds in 2026, eliminating the failure-prone original dual-point mechanical points distributor in favor of an electronic HEI setup delivers instant starting reliability, smoother idle quality, and a hotter spark capable of burning modern high-octane or ethanol-blended fuels cleanly. This comprehensive guide details the wiring protocols, conversion components, timing strategies, and troubleshooting methods required to successfully..."

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