6mm Dummy Fuel Injectors Plugs for LT Engines

Compatible with: GM Gen V LT Series Engines

• Used when switching to port fuel injection
• Compatible with 2025-newer (GM started using 6mm injectors in some models and years inconsistently from 2019-2024.  2025+ used only 6mm) : LT1, LT4, L84, L87 engines. For 7.5mm injector engines then use 551333-L83
• Requires plugging the lifter bore for the high pressure fuel pump, available separately, 551965-PLUG
• Includes: 8 mock injectors, retainer bars, and pre-installed seals
  
• Made in Wichita Kansas from 6061-T6, USA produced billet aluminum

 PLEASE MEASURE YOUR FACTORY INJECTOR NOZZLE DIAMETER BEFORE ORDERING.