MSD Heat HEI Ignition Module and High Performance HEI Coil Kit

Produces an incredible 7.5 amps of current, Enables you to adjust the rev limiter without removing the cap, Features an advanced dwell control for improved high rpm output, This coil is a direct re­placement of the stock coil, Puts out 42,000 Volts and has a peak current of 200 mA MSD Heat HEI Ignition Module and High Performance HEI Coil Kit Sku # 9100203 Condition New Brand MSD Sold Kit Details

Ignition Module

This all new Heat HEI Module supersedes the current PN 83645. Using upgraded components, the HEAT produces high output for stock and MSD applications plus has a built-in rev limiter that is more accurate and easier to set with the engine running.

Works with non-computer controlled (4-Pin) HEI housings.

• Easily installs to non-computer controlled (4-Pin) HEI housings
• Built-in adjustable rev limiter can easily be set externally
• Advanced dwell control for improved high rpm output
• The Hottest HEI Module you buy-period!
• Produces an incredible 7.5 amps of juice!
• Adjust the rev limiter without removing the cap!
• Fits in stock HEI Coil

  HEI owners now have a choice to replace their stock coil with the MSD High Energy Unitized Coil for GM HEI Distributors. This coil is a direct re­placement of the stock coil. The coil features special low induc­tance, high temperature windings which charge faster to give you increased spark energy at higher rpm. The premium epoxy filled construction is designed to withstand harsh race applications as well as the wear and tear that daily usage dishes out, and still deliver more spark energy to the spark plugs.

  • Direct performance replacement for GM HEI coil-in-cap distributors
  • 70:1 turns ratio and lower primary resistance produce high voltage output
  Specs Sold in Quantity Kit Reviews Excellent product Rated by Heffe on July 04, 2026

  Summary: The module on my current ride was toast due to a bad ground. New one was very easy to install. After a quick adjustment to the timing, I was back on the road.

  Yes, I recommend this product.

  Great Rated by 12cranks on July 03, 2023

  Summary: Great

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