Digital HEI Module, GM
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MSD Ignition Digital HEI Module, GM

Part No. 83647 Warranty Details  
Quantity  Add to Cart

Fit of this part varies by vehicle & equipment specs Type of Fit

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.

Product Features:
  • 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 A of juice
  • Adjust the rev limiter without removing the cap
  • Fits in stock HEI distributors
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1 Question | 1 Answer
Displaying question 1
  • Q:

    do you have a 5 pin connector
    Asked on 5/5/2013 by Lee from Corpus Christi texas

    1 answer



      In order to locate the exact 5 pin HEI Module, please provide the year, make, model and engine size of your vehicle. For more information, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

      Answered on 5/6/2013 by Steve from AAP
Displaying question 1

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