MSD's Digital 6AL ignition control uses an onboard microprocessor to monitor and control every firing and rev limit, with efficient components that increase output while drawing less current. It delivers over 530 volts to the coil with up to 135mJ of spark energy per firing, combined with MSD's multiple-spark output. Wiring routes out one end of the unit through a sealed, locking connector for a clean installation, and the rev limiter sits on top of the housing with two rotary dials for setting the limit in 100 RPM increments. It's compatible with 4, 6, or 8-cylinder engines on 12-volt, negative-ground systems and accepts trigger inputs from breaker points, amplifiers, and magnetic pickups.
Specifications:
- Compatibility: 4, 6, or 8-cylinder engines, 12V negative ground
- Secondary Voltage: 45,000V
- Spark Energy: 135-145mJ per spark
- Primary Voltage: 520-540V
- Voltage Required: 12-15V (7V start)
- Current Draw: 0.7 amp per 1,000 RPM
- Maximum RPM: 11,000
- Rev Limiter: Adjustable in 100 RPM increments via two rotary dials
- Weight/Size: 1.7 lbs, 8"L x 4"W x 1.825"H
- CARB Status: EO# D-40-43
- Warranty: Manufacturer's Limited 1-Year Warranty
- Part Number: 6425
Compliance: This ignition control carries California Air Resources Board (CARB) Executive Order EO# D-40-43, making it legal for sale and use on Emissions Controlled Vehicles in all 50 states when installed per MSD's application guide.
FAQ
Is the MSD 6425 Digital 6AL legal for street use in California?
Yes. It carries CARB EO# D-40-43, making it legal for sale and use on Emissions Controlled Vehicles in all 50 states per MSD's application guide.
What's the rev limiter adjustment range?
The built-in rev limiter is set with two rotary dials in 100 RPM increments.
What engines is the 6425 compatible with?
4, 6, or 8-cylinder engines on 12-volt, negative-ground electrical systems.
What trigger inputs does it accept?
Breaker points, amplifiers, and magnetic pickups.
How much spark energy does the Digital 6AL produce?
Up to 135-145mJ of spark energy per firing, with over 530 volts delivered to the coil.
