GM HEI Weight & Spring Kit

Part # 8428 Be the first to write a review

The Kit comes with new advance weights, springs to set the rate of advance and new bushings.

Find Similar In-Stock Items

Free Shipping - Lower 48 US States

Est. Ship Date: 09/25/2026

MSRP $63.95

$50.93

Save $13.02

Notify Me When Available

This kit will help you achieve the solid ignition timing you need! This is designed for the Street Fire HEI and stock style HEI Distributors. (Not for use with Billet and Pro-Billet MSD Distributors)

Features:

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

Brand	MSD
Category	Ignition
Color	Black
Distributor Type	HEI
Emission Code	5
part type	Distributor Mechanical Advance
Product Type	Distributors and Components
Sub Category	Distributor and Magneto
Warranty	Manufacturer's Limited 1 Year Warranty
UPC	085132084289
Warning	California Proposition 65
Part Number	8428

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Instructions - 8428.pdf

Manufacturer's Limited 1 Year Warranty: See Details

Reviews

Your Review

Title

Review

*Free Shipping and Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

Some parts are not legal for use in California or other states with similar regulations.

GM HEI Weight & Spring Kit

GM HEI Weight & Spring Kit

Also Bought

Features:

Be the first to write a review

Your Review