Product Description
LT4 Fuel Injector and High Pressure Fuel Pump Upgrade Kit
Fits 2014+ LT1 L83 L86 Engines (PCM Tuning Required)
Includes 8 Fuel Injectors, Fuel Pump (HPFP), and 3 Fuel Lines
The higher flowing LT4 fuel injectors and fuel pump are a popular upgrade when increasing the power of your LT1, L83 or L86 engine beyond what the original injectors and fuel pump can support. This kit includes all 8 injectors and the fuel pump, as well as the 3 LT4-specific fuel lines needed to complete the swap. PCM tuning will be required when using these injectors and fuel pump on non-LT4 applications.
Genuine GM Parts Included in this kit:
- 19420801 - Set of 8 LT4 Fuel Injectors
- 12711668 - LT4 High Pressure Fuel Pump (HPFP)
- 12677003 - Fuel Rail "S" Feed Pipe
- 12677005 - Feed Line from HPFP to "S" Pipe
- 12663577 - Feed Pipe into HPFP from low pressure supply line
