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 PN 8365 Pro-Billet HEI).

Key Features:

• GM HEI Weight And Spring Kit

• Stock Style HEI Distributors

• Incl. Springs/Weights/Bushings

• Race Only

The MSD team has a strong core of excellent engineers, technicians, assembly specialists who design, develop and manufacture a wide variety of products, including Ignition Controls, Coils, Timing Accessories and Spark Plug Wires and Accessories. All MSD products feature the finest ignition components anyone can install on their vehicle and are geared towards all auto enthusiasts!

Vehicle Fitment

FAQ

What part number is this?
The listed part number is 8428.

Should I confirm product specifications before ordering?
Yes. Compare the original product specifications and application details with the supplied information.

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