Description
A reliable HEI ignition system depends on clean, secure electrical connections—and a compromised battery or tach lead can introduce noise, voltage drop, and unreliable tach readings that affect both performance tuning and diagnostics. This OEM-specification pigtail harness restores proper signal integrity to your GM HEI distributor, ensuring accurate ignition timing and tachometer function without the guesswork of makeshift repairs. Whether you’re diagnosing electrical gremlins or rebuilding your ignition harness, a quality replacement lead eliminates a common point of failure in high-performance and vintage racing builds.
- HEI ignition harness
- Battery and tachometer connector
- GM OEM specification
- Bolt-on installation
- MPN 170072
- Sold individually
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