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MSD : 83641 : Chevrolet : Ignition Module - HEI - Extreme Output

MSD’s new Extreme Output HEI system features an all new ignition module that is capable of producing up to 20 Amps to drive the coil! Yes, 20 Amps! Obviously, an oversized coil is required to handle this energy so our engineers devised an all new coil that can deliver over 100 millijoules of energy across the plug gap. All of this energy is monitored and controlled cylinder by cylinder by a 32 Mhz RISC microcontroller.
  • Absolutely the most powerful HEI Module available.

  • Availability: Usually ships the next business day.

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