Holley EFI 556-174 Crankshaft Timing Kit – 8" 12-1X, Gen III/IV LS Engines, Hall-Effect

Upgrade your Gen III or IV LS engine with the Holley EFI 556-174 Crankshaft Timing Kit. This 8-inch 12-1X Hall-Effect kit provides precise engine timing for smoother performance and improved reliability. Designed for automotive engines, it’s perfect for mechanics and car enthusiasts looking for high-quality ignition components.