GM LS2/7 Ignition Control ,06-On 58-Tooth Crank

The 6LS and 6LS-2 Ignition Controllers can now be installed on EFI or carburetor equipped engines.

PART# 6012

Suggested Retail: $396.95
Your Price:$356.95
Free Shipping on orders over $100*


While it may seem blasphemous to some, putting a carburetor on a GM Gen-III V-8 is a great option for those wanting the advantages of the aluminum small block without the headaches of wiring a modern EFI system. The controllers allow you to map a timing advance curve with MSD’s easy-to-use Pro-Data+ software. Other programmable features include a two-step rev limiter, a vacuum advance curve for cruising economy and even a step retard in case you want to add a little nitrous to the mix. The 6LS is designed for LS1/LS6 type engines with a 24-tooth wheel, which can be identified by its black crank sensor connector. The 6LS-2 is designed specifically for the LS2/LS7 and its 58-tooth wheel, which can be easily recognized by its gray crank sensor connector. Both of these compact ignition controllers fit with matching factory connectors for a direct installation. Only a handful of connections are required; the coils, crank sensor, MAP sensor and the cam sensor. You’ll have your carb’ed LSX running in no time!


  • Runs a carbureted LS2 engine without complicated EFI hardware
  • Map a timing curve using Pro-Data+ software
  • Programmable two-step rev limiter, vacuum advance curve and step retard
  • Direct plug-in to factory components
  • Programmable via a PC through MSD's Pro-Data+ software.
  • Does NOT control fuel


Emission Code3
WarningCalifornia Proposition 65

Tech Resources


This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.

WARNING FOR 6012: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
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