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MSD 6AL Digital Ignition Module w/ Rev Control (79-95 All)

AmericanMuscle no longer carries the MSD 6AL Digital Ignition Module w/ Rev Control (79-95 All). Please check out Mustang Coils and Coil Packs for an updated selection.
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AmericanMuscle no longer carries the MSD 6AL Digital Ignition Module w/ Rev Control (79-95 All). Please check out Mustang Coils and Coil Packs for an updated selection.

Features & Details

  • A Stronger Spark Equals More Power
  • Higher Output with 530 Primary Volts and 135mJ of Spark Energy
  • More Efficient, Uses Less Current to Produce More Power
  • New Lower Profile Housing
  • Built-In LED for System Checks
  • Soft Touch Rev Control
  • Fits All Mustangs with a 12-15 Volt Electrical System
Capacitive Discharge. The MSD 6AL Digital Ignition features a capacitor which is quickly charged (within one millisecond) to 520-535 volts and stores it until the ignition is triggered. With the Capacitive Discharge design, the voltage sent to the coil is always at full power even at high rpms unlike conventional stock inductive ignitions which requires the coil to store and step up the voltage in between each firing which can result in a loss of power or top end miss.

More Efficient. Inside the Digital 6AL you'll find a high speed RISC micro-controller that constantly monitors and controls every firing and rev limit. The circuitry has been updated with highly efficient components that help the ignition produce more power while drawing less current. The new Digital 6AL delivers well over 530 volts to the coil with up to 135mJ of spark energy for every firing. Increased output combined with MSD's proven multiple spark series is a winning combination.

Multiple Sparks. The MSD 6AL produces full power multiple sparks for each firing of a plug. The number of multiple sparks decrease as your rpm's increase, however the spark series always lasts for 20° of crankshaft rotation. For rpm's above 3,000 there is simply not enough "time" to fire the spark plug multiple times, so there is only one powerful spark.

Soft Touch Rev Control. MSD developed the Soft Touch rev control system to prevent over-rev damage to your engine in the event of a missed shift or drive line failure. MSD designed the rpm limit to be adjustable in 100 rpm increments with plug-in modules. When the engine reaches the selected limit, the Soft Touch circuitry begins dropping the spark to various cylinders. On the next cycle, these plugs are fired again to prevent fuel from loading up in the cylinder. The result is a smooth and accurate limiting action without backfires or roughness.

Application. The MSD 6AL Digital Ignition Module with Rev Control will work on all Mustangs that are equipped with a 12-15 volt electrical system, including 4, 6 or 8-cylinder engines.

Operating Specifications
  • Spark Energy: 135-145 mJ per spark
  • Primary Voltage: 520-540 Volts
  • Secondary Voltage: 45,000 Volts
  • Spark Series Duration: 20 degree Crankshaft Rotation
  • RPM Range: 15,000 RPM with 14.4 Volts
  • Voltage Required: 12-15 Volts, 7 volt start
  • Current Draw: 0.7 Amp per 1,000 RPM
  • Weight/Size: 1.7 lbs. 8"L x 4"W x 1.825"H
What's in the Box
  • (1) Ignition Module
  • (1) Wiring Harness
  • Installation hardware
Installation Info

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4 Questions / 4 Answers

Ask a Question

What rpm's does the soft touch rev limiter set to?


  • The soft touch rev limiter can be set from 2,000 to 11,000 rpms.


Helpful (0)

Will this fit an 2002 gt?


  • Hi, This ignition module is designed to fit 79-95 Mustangs, we do have the MSD Launch Master 2 Step Rev Limiter Item#14225 for 99-10 V8 Mustangs. Here is the link

    Chris J

Helpful (0)

Does this ignition box come with enough wiring to allow mounting in the car? I am looking to put it under/behind the dash so it's not under the hood and just wanted to see if the harness it comes with has enough wire to reach to the distributor.


  • When installing the MSD 6AL Digital Ignition Module w/ Rev Control inside of the car, you would need to extend the wiring to reach the under hood components this hooks to.

    Rob D

Helpful (0)

will this make my car two step as well? will this bounce the rpms in a two step method ?


  • This looks like a single-step in, you'll only have one set RPM limit that you select on the module. If you want multi-step RPM limiting, you'll need the MSD Power Grid System Controller in addition to this module which will allow for four steps of limiter, among many other options.


Helpful (0)

Customer Reviews (8) Write a Review

Overall Rating 4.9

out of 5 stars

Installation Time:Afternoon

  • Performance Gain 4.857143 4.9
  • Fit 4.714286 4.7

  • 5/5

    Installation Time: Less than 1 Hour

    March 07, 2017

    Just what I ordered

    Just what I ordered. Works great. Would recommend to anyone to buy from American Muscle


    Year: 1991 Submodel: GT

    Helpful (4)

  • 5/5

    February 08, 2017

    New parts

    New ignition works great. Starts my Mustang fast. Never had a problem with parts I buy at American muscle.


    Year: 1983 Submodel: Other

    Helpful (3)

  • 4/5

    July 15, 2016

    1987 Mustang Notchback

    Works good. Used to replace an identical box. Last box would no longer start the car, lasted a few years.


    Year: 1987 Submodel: Other

    Helpful (4)

  • 5/5

    Installation Time: Afternoon

    October 26, 2015

    MSD ignition 6al2

    I put the box under the air intake tube. Made my own brackets for the install. I have a Ford Racing crate motor and the box made the idle smoother. I can feel a little extra "oomph" when giving it gas and shifting thru the gears. But biggest reason to get 6al2 was for the Rev limiter. Install is pretty simple.


    Year: 1988 Submodel: GT Wilmington, OH 45177, USA

    Helpful (4)

  • 5/5

    Installation Time: Afternoon

    August 09, 2015


    I was able to connect everything very quickly with an additional purchase of an MSD harness. This ignition is amazing and does what it advertises. Smoother idle and better acceleration. Very easy to set the rpm limiter and comes with a screwdriver key. I installed the ignition on the bottom of the frame, below the battery. It stays cool there and is protected from damage. I would recommend this to every Mustang user. I love it!


    Year: 1989 Submodel: GT Eagle River, AK

    Helpful (4)

  • 5/5

    Installation Time: Afternoon

    December 23, 2014

    excellent product

    Excellent product more throttle response i recommend


    Year: 1989 Submodel: Other Trois-Rivières, QC, Canada

    Helpful (4)

  • 5/5

    Installation Time: Less than 1 Hour

    July 02, 2013

    This product has great features

    love it, The circuitry has been updated with highly efficient components that help the ignition produce more power while drawing less current.


    Year: 1992 Submodel: GT San Mateo, CA

    Helpful (5)

  • 5/5

    Installation Time: Weekend

    May 11, 2012

    msd is a must

    great product highly recommend rev control with all upgraded our performance vehicles definitely save you time and money from replacing parts when missing a gear or reving at a high rpm


    Year: 1989 Submodel: Other Philadelphia, PA, USA

    Helpful (5)

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