The MSD 6CT Digital Ignition Box, part number 6427, combines digital ignition control with a built-in dial-adjustable rev limiter for circle track racing. Its large LED display makes settings easy for racers and tech officials to read.
Built for demanding dirt track conditions, the 6CT features an epoxy-filled cast aluminum housing and a sealed wiring connector. Rotary dials control the rev limiter, cylinder selection, and start retard.
- Works with 4-, 6-, and 8-cylinder engines
- Smooth microprocessor-controlled rev limiting
- Start retard settings of 0°, 10°, or 20°
- LED display shows RPM, battery voltage, and settings
- Records peak RPM from the last 20 minutes of engine operation
- Reverse-polarity and overheat protection
- Measures 7.89" × 4.00" × 1.87"
- Manufacturer part number: 6427
For racing use only. Check ignition compatibility and your class rules before ordering.
Download MSD 6CT Installation Instructions (PDF)
https://documents.msdignition.com/e9836a522612c0feb5f057ad6711ce3427c98c8e.pdf