MSD/Multiple spark ignition controller with 2-Step limiter for 4, 6 and 8 cyl.

Not Vehicle Specific
Part Number: 6421

This item cannot be shipped to the following

US State(s), Territory or Military address(es): CALIFORNIA

Features & Benefits

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 V of primary voltage with spark energy reaching up to 135millijoules. 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.

  • All new housing, digital circuits and performance
  • Built-in 2-step rev control – with rotary dials
  • Higher output with up to 135 m and 535 V
  • Accepts Hall-effect, points and mag pickup triggers
  • Managed by an efficient digital control
Product Details
Part Number: 6421
Weight: 3.3 lbs
Type: Ignition Control
Category: Multiple Spark
Connector / Terminal Configuration: Ring Lugs, 2 PIN connectors
Item Grade: High Performance
Package Contents: Ignition Control with wiring, hardware, Installation and warranty instructions.
Product Condition: New
Shipping Information: Overnight and Two Day shipping are not available for PO Box, APO/FPO/DPO or US Territory addresses.
This product may be shipped directly by the vendor to any eligible US addresses, excluding APO/FPO/DPO or US Territory addresses.
  • Overall

    MSD/Multiple spark ignition controller with 2-Step limiter for 4, 6 and 8 cyl.


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