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Key Specs

MFG. Part #8428
BrandMSD
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MSD 8428 Details

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 Billet and Pro-Billet MSD Distributors)
  • Fits Street-Fire HEI
  • Fits Stock Style HEI Distributors
  • Not for MSD Billet and Pro-Billet Distributors

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Holley IRS Sale 2026

Save 10% instantly on select products across the Holley family of performance brands during the annual Holley I.R.S.Tax Sale. Instant rebate period runs from February 17, 2026 through March 29, 2026.

MSD 8428 Specifications

KEY SPECS
MFG. Part #8428
BrandMSD
GENERAL
GTIN Code085132084289
Customer Impersonation Script