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Chevy V8 GM HEI Distributor w/ MSD Module
Chevy V8 GM HEI Distributor w/ MSD Module

Chevy V8 GM HEI Distributor w/ MSD Module

Chevy Small Block V8, Chevy Big Block V8, HEI / Male Cap Type, HEI / Male Cap Terminal Style

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Chevy V8 GM HEI Distributor w/ MSD Module
Chevy V8 GM HEI Distributor w/ MSD Module
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Part # 91012341
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  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.

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Cap Type:
HEI / Male
Cap Terminal Style:
HEI / Male
Advance Type:
Mechanical and Vacuum
Trigger Style:
Hall Effect:
Sync Signal:
Trigger Sensors:
Gear Material:
MFG. Part #:
Sold in Quantity:


If you are racing on a budget, and you need to replace your worn out HEI distributor, this is your best option! These NEW distributors feature with steel gear and mechanical advance for longer starter and flywheel life. Includes cap and rotor with brass terminals, vacuum advance lock plate to eliminate the vacuum module, and an MSD module good to 9000+ RPM. Module features a built-in externally adjustable rev limiter.

Works with cap mounted coil (sold separately) or convert to external coil and ignition box. We have experienced better reliability using an EXTERNAL coil that will withstand the heat & vibration of racing. Includes instructions to simplify installation & eliminate confusion.

910-12341 Instructions (PDF)

Item Details

with Mechanical Advance and Adjustable Rev Limiter


For oval track racing use, this distributor can be used one of two ways:

  1. Use a cap mounted coil (sold separately) along with the 9000+ RPM MSD internal module. For the best performance and reliability use a 15 volt battery and alternator.
  2. Use an external coil adapter, MSD ignition box and coil. Usually you can remove the internal module for maximum RPM. This set-up is better suited to withstand the severe heat & vibration of racing.


  • Application:  Race/Street
  • Timing Gear:  Steel
  • Module:  9000 RPM
  • Adjustable Rev Limiter:  Yes 
  • Module Output:  7.5 amps
  • Mechanical Advance
  • Vacuum Advance w/ Lockout Plate
  • MSD Module Instructions (PDF)

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

Related Products

What's In The Kit

Each kit from Speedway Motors is carefully packaged and delivered right to your door. Below is a list of all the items you should expect to receive when you order this kit. Some of these items may also be available for sale individually if you're here looking for replacement parts.
  • HEI Distributor For MSD Use
    Qty x 1
  • Vacuum Advance Lock Plate
    Qty x 1
  • Speedway Replacement HEI Distributor Cap
    Qty x 1
  • Speedway HEI Replacement Rotor
    Qty x 1
  • MSD 83647 Heat HEI Ignition Module
    Qty x 1

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  • Looking for an easy performance upgrade to your ignition system? MSD's line of Ignition Control Boxes offer extreme improvements to drivability and high rpm applications. Here's a look at the differences between the 6 series line-up.
  • Speedway Motors has some great tips on how to get the best performance out of your ignition system. Let's take a look at the the GM HEI style distributor, possibly one of the most affordable performance distributors today.

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