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Buy 3 Select Tires, Get the 4th Free Instantly

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Buy 3 Select Tires, Get the 4th Free Instantly
Buy 3 Tires, Get 4th Tire Free Instantly. Receive a discount equal to the price of a single tire when four tires are added to the cart. Valid on select in stock tires only. Those tires for which discount is available will be identified in search results & product detail pages. All other tires and special order tires are excluded from this offer. Valid when scheduled for installation on PepBoys.com and installation is completed between 8/18/16 through 8/24/16.

69_301_83647
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  • Part #: 83647 |
  • SKU: 679440

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    • Easily installs to non-computer controlled (4-pin) HEI housings
    • Built-in adjustable rev limiter can easily be set externally
Retail
$105.99
PayPal available for online purchases. Major credit cards accepted online and in store. Pay online, in-store or take advantage of our Pep Boys credit card. Learn more and see additional details in cart.

MSD Digital HEI Module, GM

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.
  • 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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