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    MSD Ignition GM HEI Weight & Spring Kit

    Part #8428
    • Product Details

      Part No.8428

      Warranty Details (90 DAY REPLACEMENT IF DEFECTIVE)

      This kit will help you achieve the solid ignition timing you need! The kit comes with new advance weights, springs to set the rate of advance and new bushings. This is designed for the Street Fire HEI and stock style HEI distributors. (Not for use with MSD's PN 8365 Pro-Billet HEI).

      Product Features:

      • Advance kit for MSD and Street Fire HEI distributors
      • Three sets of advance springs supplied
      • Two sets stop bushings supplied
      • For use with MSD and Street Fire distributors only

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