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MSD Performance 6421 - 6AL-2 Ignition Control Box. Universal. with 2-Step Limiter

MSD is excited to announce the next generation of 6-Series ignition controls– the 6AL-2. The all new ignition control combines a new housing, new digital controls, and more power in a sleek package. Inside the new cast aluminum housing, you'll find an advanced micro-controller that manages the timing and rpm of the ignition. The spark output of the new box has been turned up to 535 volts of primary voltage with spark energy reaching up to 135 millijoules. The multiple sparks of the 6AL-2 burn in the cylinder for 20 degrees of crankshaft rotation to ensure complete combustion. Two more great features are the rev limits. There are two rev limiters; one for high end overrev protection and another you can activate off a clutch or trans brake to set a launch limit. This feature will help your car blast off the starting line. Adjustments are made via four rotary dials for 100 rpm increment control. The all-new capacitive discharge ignition will easily connect to nearly any 12-volt negative ground distributor system.

  • New housing/digital circuits
  • Built-in 2 Step rev control with rotary dials
  • One for high-end over-rev protection
  • Another activates off clutch/transbrake set lunch limit
  • Higher output with up to 135mJ and 535 Volts
  • Accepts hall-effect/points and mag pickup triggers
  • Managed by efficient digital controller
  • Compatible for 4/6/8 Cylinder engines
DETAILS
Color/Finish: Red
Current Draw: .7 Amp per 1,000 RPM
Primary Voltage: 535 Volts
RPM Range: 12.000 RPM with 14.4 Volts
Rev Limiter: Yes
Secondary Voltage: 45.000
Spark Energy: 135 mJ Per Spark
Spark Series Duration: 20° Crankshaft Rotation
Usage: Performance, Street
Voltage Required: 12-18 Volts, Negative Ground
Available downloads:
Download instructions

7 of 7 reviews

Average rating of 5 out of 5 stars


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7 reviews

30 October 2019 04:00

Review with rating of 5 out of 5 stars

excellent service

excellent service

6 July 2018 04:00

Review with rating of 5 out of 5 stars

netjes en vriendelijk geholpen

netjes en vriendelijk geholpen

15 December 2017 04:00

Review with rating of 5 out of 5 stars

MSD 6AL-2

Perfekt und schnelle Lieferung !

11 November 2017 04:00

Review with rating of 5 out of 5 stars

MSD 6al-2 Zündbox

Hab mir für meinen 327ci V8 eine komplette MSD Anlage bestellt…gerade ersten Probelauf absolviert….läuft perfekt!

12 August 2016 04:00

Review with rating of 5 out of 5 stars

MSD 6AL with 2 STEP REV LIMITER

A good product as always from MSD. Did what i needed

5 October 2015 04:00

Review with rating of 5 out of 5 stars

Igniter box

quick response very friendly and professional service had the item on my doorstep two days later recommend the company

29 June 2015 04:00

Review with rating of 5 out of 5 stars

MSD 6AL-2

radically improve idle, start and fuel economy !! very happy !!

There are no installation notes for this product.

MSD Performance 6421 - 6AL-2 Ignition Control Box. Universal. with 2-Step Limiter

MSD is excited to announce the next generation of 6-Series ignition controls– the 6AL-2. The all new ignition control combines a new housing, new digital controls, and more power in a sleek package. Inside the new cast aluminum housing, you'll find an advanced micro-controller that manages the timing and rpm of the ignition. The spark output of the new box has been turned up to 535 volts of primary voltage with spark energy reaching up to 135 millijoules. The multiple sparks of the 6AL-2 burn in the cylinder for 20 degrees of crankshaft rotation to ensure complete combustion. Two more great features are the rev limits. There are two rev limiters; one for high end overrev protection and another you can activate off a clutch or trans brake to set a launch limit. This feature will help your car blast off the starting line. Adjustments are made via four rotary dials for 100 rpm increment control. The all-new capacitive discharge ignition will easily connect to nearly any 12-volt negative ground distributor system.

  • New housing/digital circuits
  • Built-in 2 Step rev control with rotary dials
  • One for high-end over-rev protection
  • Another activates off clutch/transbrake set lunch limit
  • Higher output with up to 135mJ and 535 Volts
  • Accepts hall-effect/points and mag pickup triggers
  • Managed by efficient digital controller
  • Compatible for 4/6/8 Cylinder engines
DETAILS
Color/Finish: Red
Current Draw: .7 Amp per 1,000 RPM
Primary Voltage: 535 Volts
RPM Range: 12.000 RPM with 14.4 Volts
Rev Limiter: Yes
Secondary Voltage: 45.000
Spark Energy: 135 mJ Per Spark
Spark Series Duration: 20° Crankshaft Rotation
Usage: Performance, Street
Voltage Required: 12-18 Volts, Negative Ground

Available downloads:
Download instructions

7 of 7 reviews

Average rating of 5 out of 5 stars


100%

0%

0%

0%

0%


Leave a review!

Share your experiences with other customers.


7 reviews

30 October 2019 04:00

Review with rating of 5 out of 5 stars

excellent service

excellent service

6 July 2018 04:00

Review with rating of 5 out of 5 stars

netjes en vriendelijk geholpen

netjes en vriendelijk geholpen

15 December 2017 04:00

Review with rating of 5 out of 5 stars

MSD 6AL-2

Perfekt und schnelle Lieferung !

11 November 2017 04:00

Review with rating of 5 out of 5 stars

MSD 6al-2 Zündbox

Hab mir für meinen 327ci V8 eine komplette MSD Anlage bestellt…gerade ersten Probelauf absolviert….läuft perfekt!

12 August 2016 04:00

Review with rating of 5 out of 5 stars

MSD 6AL with 2 STEP REV LIMITER

A good product as always from MSD. Did what i needed

5 October 2015 04:00

Review with rating of 5 out of 5 stars

Igniter box

quick response very friendly and professional service had the item on my doorstep two days later recommend the company

29 June 2015 04:00

Review with rating of 5 out of 5 stars

MSD 6AL-2

radically improve idle, start and fuel economy !! very happy !!

There are no installation notes for this product.

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Racers never stop experimenting as they search for every way to wring out more power or handling performance to to gain an edge over the competition. The team at MSD is no different as we strive to deliver the products you need to meet your performance goals. We continue to innovate and invent components and technology that deliver performance and reliability with products that are easy to use and install. Over the course of 40-plus years, MSD Performance has been driving the development of innovative components that helped shape the way our cars race and perform. From super speedways to road courses, land speed racing to top fuel dragsters, and of course your traditional hot rod, MSD has provided the components to fire nearly anything in motorsports. Early on, MSD focused squarely on ignition systems with revolutionary products like the multiple sparking CD ignition, timing and rev controls, billet aluminum distributors and the Pro-Mag, an incredible breakthrough in power and endurance. Today MSD is developing electronics for your entire powertrain. The Atomic EFI systems for the LS engine platform and throttle body are now complemented with a transmission controller. Our DynaForce Starters and Alternators ensure that your engine cranks over to fire up and the Alternators keep it charged. MSD is poised to deliver components that work and communicate together to provide performance and value.