MSD Red Digital 6AL Ignition Control Box w/ Rev Limiter

Improve your ignition performance with the MSD digital 6AL ignition control box (MSD 6425)! It enhances combustion, throttle response, and idle quality in 4, 6, and 8-cylinder engines.

Features and Benefits:
- Multiple spark discharge to 3,000 RPM
- Strong single spark above 3,000 RPM
- Built-in adjustable rev limiter
- Dual rotary dials for 100 RPM settings
- Compatible with 4, 6, and 8 cylinder engines
- Triggered by points, pickups, or amplifiers
- Sealed locking connector for secure wiring
- LED system status indicator
- High spark output with low current draw
- Includes wiring harness and hardware

This control box features multiple spark discharge up to 3,000 RPM and a powerful single spark above that range. A built-in adjustable rev limiter with twin rotary dials allows RPM control in 100 RPM steps, adding engine protection. For a reliable installation, it includes sealed connectors, an LED status light, and a complete wiring kit.

Please Note: This ignition control is emissions‑legal when installed according to MSD’s CARB EO application guide. Always verify coil compatibility, wiring configuration, distributor type, and mounting space before installation.

Specifications:
- Ignition Type: Digital Capacitive Discharge (CD)
- Spark Energy: 135-145 mJ
- Maximum RPM: 11,000 RPM
- Operating Voltage: 12-15V (7V start)
- Primary Voltage: 520-540V
- Secondary Voltage: 45,000V
- Current Draw: ~0.7 amp per 1,000 RPM
- Cylinder Compatibility: 4 / 6 / 8
- Trigger Inputs: Points, Magnetic Pickup, Electronic Amplifier
- Connector: 1 Female (sealed/locking); Terminals: 12 Male
- Mount Type: Surface mount (hardware included)
- Dimensions: 8" L x 4" W x 1.825" H
- Weight: ~1.7 lb
- Color: Red
- Emissions Status: CARB EO (50‑state legal when installed per MSD guide)