MSD 6421 6AL-2 ignition control.
Inside the cast aluminum housing is 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 MSD 6AL-2 burn in the cylinder for 20 degrees of crnakshaft rotation to ensure complete combustion.
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!
Rev limit adjustments are made via four rotary dials for 100 rpm increment control.
Will easily connect to nearly any 12-volt negative ground distributor system, even Hall-effect pickups.
Supplied with wiring and vibration mounts for a complete installation.
Compatible with 4, 6, and 8 cylinder engines.
Measures 7" long by 4" wide by 2" tall.
Weights 3 lbs.
Spark energy is 135 MJ per spark.
Primary voltage is 535 volts.
Secondary voltage is 45,000 volts.
RPM range is 12,500 rpm with 14.4 volts.
Voltage required is 12-18 volts, negative ground.
Spark series duration is 20 degrees of crankshaft rotation.
WARRANTY: MSD Ignition warrants its products to be free from defects in material and workmanship under normal use, if properly installed, for a period of one year from the date of purchase. Contact MSD's customer service department for an RMA number before returning an ignition.
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