The MSD Smart Coil Big Wire Kit allows you to run dwell time over 5 milliseconds to gain the most of the Smart Coils. It will allow the coil to produce 50,000 peak voltage and peak energy of 190 millijoules, this means you get hotter spark at the plug to burn the maximum amount of fuel in each cylinder to reach the optimal horsepower out of your engine. It is compatible with Holley EFI and many other aftermarket electronic fuel injection systems and will run on traditional 12 or 16 volt electrical systems found in race applications. Unique elongated mounting holes accommodate IGN-1A mounting brackets or allow it to bolt in place of an LS coil with 72mm bolt spacing. The MSD Smart Coil will bolt right onto Holley LS cast aluminum valve covers for a super clean look. Available in red or black.


  • Contains two terminated harnesses with 7-pin connector for easier plug-in to Holley LSx main harness or factory GM LSx harness
  • The harnesses are labeled for different engine types for GM and Ford cylinder banks even Holley universal coil near plug harness
  • More spark energy than any other IGN-1A smart coil on the market for maximum fuel burn during combustion sequence
  • Built-in ignitor for compatibility with Holley EFI and many other aftermarket ECU’s
  • Maximum operating voltage of 17 volts – for compatibility with both 12 volt and 16 volt electrical systems found in many performance/race applications
  • Same wiring pinout as other IGN-1A coils for easy plugin upgrades
  • Elongated mounting holes to allow direct replacement of IGN-1A coils and will bolt in place of factory LS 1/2/3/6/7 coils with 72mm bolt spacing
  • Direct bolt-on to Holley cast aluminum LS valve covers with 72mm bolt spacing
  • Available in red or black to match your build
SKU 8289-KIT
Barcode # 90127077368
Brand MSD
Shipping Weight 11.8700kg

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