1973-1991 Ignition Coil MSD Ignition
Upgrade your ignition Coil to a high voltage MSD Blaster ignition coil for increased ignition performance. MSD Blaster and Replacement Coils work with stock ignition and MSD-equipped vehicles and all have direct, bolt-on connection with improved materials and windings for increased output voltage performance.
- Direct performance replacement for GM HEI coil-in-cap distributors
- 70:1 turns ratio and lower primary resistance produce high voltage output
- Full power sparks to 9,000 RPM
- 50 State Legal
- CARB E.O Number D-40-37
- Special low inductance
- High temperature windings which charge faster for increased spark energy at higher rpm
- Designed to withstand harsh race applications as well as daily use wear and tear
- Delivers more spark energy to the spark plugs
- Mounts in the stock HEI cap and installs in minutes
Coil Specs:
- Turns ratio: 70:1
- Primary resistance: .31 OHMs
- Secondary resistance: 9.2K OHMs
- Inductance: 3.5 mH
- Maximum voltage: 42,000 Volts (Tested with 6AL Ignition)
- Peak current: 200 mA
- Spark duration: 200 uS
Also known under these part numbers: (For reference only)