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MSD Ultimate HEI Kits

4.89 out of 5 stars 19 Customer Reviews

MSD Ultimate HEI kits have everything you need to turn your early model GM HEI distributor into a great performance distributor. The MSD HEI modules feature special circuitry to produce 50 percent higher coil drive currents than stock modules, resulting in higher spark energy at racing rpm. By matching the coil specifications with the modules, MSD delivers more accurate timing and dwell control. The kits also include a high-quality rotor, a durable cap with brass terminals, and even a new dust cover.

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MSD Ultimate HEI Kits 8501

HEI Distributor Upgrade Kit, Ultimate, Coil, Cap, Rotor, Module, GM, Kit

Part Number: MSD-8501

4.89 out of 5 stars ( 19 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

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