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MSD 6AL-2 Ignition Control

Built-in 2 step rev-limiter with rotary dials, no chips.

PART# 6421

Suggested Retail: $326.95
Holleydays Price:$264.56
Free Shipping on orders over $100*
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Overview

MSD is excited to announce the next generation of 6-Series ignition controls – the 6AL-2! The 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 built-in two step rev-limiter. 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 transbrake 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.

Features:

  • All new housing, same reliable digital circuitry and performance
  • Built-in 2-Step rev control adjustable with rotary dials
  • Higher output with up to 135mJ of spark energy
  • Accepts Hall-effect, points and mag pickup triggers
  • Managed by an efficient digital processor

Specs

BrandMSD
Current Draw.7 Amp per 1,000 RPM
Emission Code1
FeaturesRev Limiter
Primary Voltage535 Volts
RPM Range12,500 RPM with 14.4 Volts
Secondary Voltage45,000 Volts
Spark Energy135 mJ per spark
Spark Series Duration20 degree Crankshaft Rotation
Voltage Required12-18 Volts, Negative Ground
WarningCalifornia Proposition 65
Weight and Size3 lbs.,7"L x 4"W x 2"H

Tech Resources

Parts & Kits

Emissions

This part is legal for use on Emissions Controlled Vehicles when used in accordance with the manufacturers application guide because it has a California Air Resources Board Executive Order number or is a direct or consolidated replacement part.

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle
WARNING FOR 6421: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
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