MSD Digital 6AL Ignition Control System, Red - 6425 SKU: 6612

MSD Digital 6AL Ignition Control System | Red | #6425

The legendary MSD 6AL Ignition Control has powered everything from street cruisers to championship race cars—and now it's better than ever. The Digital 6AL takes MSD’s time-tested design and adds modern efficiency, cleaner wiring, and tighter spark control in a sleek, updated housing. This red-anodized unit produces up to 135mJ of spark energy, feeds the coil over 530 volts, and features an integrated rev limiter with easy-access rotary dials—all in a lower-profile case that fits where the original did.

Perfect for 4, 6, or 8-cylinder engines running a 12V negative-ground system, the 6AL is compatible with a wide range of ignition triggers, including breaker points, magnetic pickups, and amplifier-style distributors. Whether you're chasing throttle response, higher RPM stability, or simple overrev protection, this ignition box delivers.

• Sleek & Efficient: Redesigned housing with lower profile and sealed connector for neater, simpler wiring.

• High Voltage Output: Generates 520–540 volts primary, with 135–145 mJ per spark—more power with less current draw.

• Easy Rev Limit Adjustment: Set your rev limiter in 100 RPM increments using the rotary dials on top of the unit.

• Modern Spark Control: Features a microprocessor that monitors and regulates every spark cycle.

• Race-Proven MSD Performance: Supports multi-spark series firing for better combustion at lower RPMs.

• Wide Compatibility: Works with points, amplifier, and magnetic pickup signals.

• Rugged Mounting: Includes vibration isolation mounts and full wiring harness for install.

• Street Legal: 50-state emissions legal per CARB E.O. #D-40-43—okay to run in California and beyond.

Operating Specs

• Spark Energy: 135–145 mJ per spark

• Primary Voltage: 520–540V

• Secondary Voltage: 45,000V

• Spark Duration: 20° crankshaft rotation

• RPM Range: Up to 15,000 RPM (14.4 volts)

• Voltage Required: 12–15V (7V start minimum)

• Current Draw: 0.7 amp per 1,000 RPM

• Size & Weight: 8" L x 4" W x 1.825" H; 1.7 lbs

More power, smarter control, cleaner install—MSD’s Digital 6AL sets the standard in performance ignition systems with advanced spark delivery and race-ready durability.