Product Summary

  • 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
  • The built-in adjustable rev limiter can easily be set externally
  • It easily installs to non-computer controlled (4-Pin) HEI housings

Key Specs

D-40-43
BrandMSD
CARB EO#

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Details

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 distributors

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Warranties

Specifications

D-40-43
KEY SPECS
BrandMSD
CARB EO#
GENERAL
GTIN Code085132836475

Ratings & Reviews

4.5

11 Reviews

Customers say

Customers consistently praise the product for its ability to enhance car performance, particularly by fixing high RPM misfires and stabilizing sparks to prevent plug fouling. The addition of a rev limiter was a widely appreciated feature. The majority of users experienced improved performance and found it simple to install. However, some wish it maintained a more stock appearance and were seeking further power enhancements. The product was preferable to comparable items from other brands, notably outperforming the pertronix flame thrower.