Holley EFI- 556-174 8-Inch 12-1X Crank Trigger Kit, LS, Hall Effect

This kit upgrades LS engines to a precise and reliable crank trigger system for high performance applications, using a Hall-Effect Sensor and compatible with various balancers.

• The kit uses a Hall-Effect Sensor that is less susceptible to interference and less likely to have false signals.
• The kit is less prone to mechanical failure since it has no wear parts.