16-24 Camaro 6.2L LT4 Rated High-Flow Injector Kit (Includes 8) - Chevrolet Performance

FITS 2016-2024 CAMARO ( LT1, SS & ZL1 MODELS )

Support increased fuel demand in your 2016-2024 Chevrolet Camaro 6.2L with the Chevrolet Performance 19420801 LT4 Rated High-Flow Fuel Injector Kit. This complete set of eight genuine Chevrolet Performance direct-injection fuel injectors is based on the production injectors used in the supercharged LT4 engine and provides substantially greater fuel-flow capability than the production LT1 injectors. Chevrolet Performance rates these LT4 direct injectors at approximately 140 lb/hr at a maximum fuel pressure of 2,950 psi. Their higher flow capability makes them an important fueling upgrade for high-output Gen V LT applications where the production LT1 injectors can become a limiting factor. For factory LT4-powered Camaro ZL1 applications, these are production-specification LT4 injectors and can serve as genuine GM replacements. For LT1-powered Camaro SS and LT1 models, the same injectors can be used as a performance fueling upgrade, but Chevrolet Performance explicitly requires calibration changes when installing them in a non-LT4 application. This distinction is especially important. The 19420801 kit is not a plug-in horsepower upgrade by itself. Direct-injection injector characteristics must be correctly represented in the engine calibration so that commanded fuel delivery matches actual injector output. An LT1 Camaro converted to these higher-flow LT4 injectors requires appropriate tuning. Fuel-system capacity should also be evaluated as a complete system. Chevrolet Performance's earlier catalog guidance states that supporting fuel-system enhancements may be required when LT4 injectors are used in non-LT4 engines. Performance specialists additionally caution that Gen V direct injectors are designed around specific operating pressures and mechanical high-pressure fuel-pump capabilities, making injector and high-pressure pump selection closely related on LT1-to-LT4 fueling conversions. The kit includes eight injectors—one complete set for a V8 engine—so there is no need to order eight individual injector part numbers. Current application information supports the kit for sixth-generation Camaro LT-series V8 applications, including LT1-powered SS/LT1 models as a tuned upgrade and LT4-powered ZL1 models using the production-style LT4 injector. For naturally aspirated builds approaching the limits of the factory LT1 fuel system, supercharged or turbocharged LT1 combinations, ethanol-capable performance builds where additional fuel volume is required, or LT4 applications needing genuine production-spec injectors, Chevrolet Performance 19420801 provides an OEM-engineered high-flow direct-injection solution.

Key Features

• Genuine Chevrolet Performance fuel injector kit
• Complete set of 8 fuel injectors
• One complete kit required per V8 engine
• Production-style direct-injection injectors for the supercharged LT4 engine
• Designed for GM Gen V LT-series direct-injection applications
• Factory-style application for LT4-powered Camaro ZL1
• Performance fueling upgrade for LT1-powered Camaro SS and LT1 models
• Approximately 140 lb/hr flow rate
• Rated at a maximum pressure of 2,950 psi
• Higher flow capability than production LT1 injectors
• Supports increased fuel demand in high-output applications
• Suitable for naturally aspirated performance builds requiring additional fueling capacity
• Direct-injection design
• Genuine GM/Chevrolet Performance components
• Clips and O-rings included
• Tuning required when used in non-LT4 applications
• Supporting fuel-system modifications may be required depending on engine output and application

Important Notes

• These are high-pressure gasoline direct-injection components, not conventional low-pressure port fuel injectors.
• Chevrolet Performance specifically states that the LT4 injectors have a higher flow rate than production LT1 injectors.
• For an LT1-powered Camaro SS or Camaro LT1, 19420801 should be treated as a performance fueling upgrade rather than a stock-equivalent LT1 replacement.
• Chevrolet Performance explicitly states that tuning is required when these injectors are installed in non-LT4 applications.
• Do not install LT4 injectors into an LT1 application and operate the vehicle using the original LT1 injector calibration.
• Injector characterization and appropriate ECU calibration must be addressed by a qualified tuner.
• Chevrolet Performance also notes that supporting fuel-system enhancements may be necessary when using LT4 injectors in non-LT4 engines.
• Maximum supported engine output depends on fuel type, commanded air/fuel ratio, fuel pressure, injector pulse width, high-pressure pump capacity, low-side fuel supply, engine calibration, boost level, and other variables.
• For LT1 vehicles being converted to LT4-level direct-injection fueling, the entire fuel system should be evaluated rather than assuming that injectors alone resolve fuel-delivery limitations.
• Performance suppliers specifically recommend treating the LT4 high-pressure pump and LT4 injectors as a coordinated upgrade when converting from an LT1/L83/L86 fuel system because injector atomization and operation are related to the corresponding high-pressure mechanical fuel system.
• A compatible LT4 high-pressure fuel pump is therefore a common companion upgrade on higher-output LT1 builds.
• Additional low-side fuel-system upgrades may also become necessary as power and fuel demand increase.
• Professional calibration is strongly recommended for any modified LT1 application using this injector kit.
• Direct-injection systems operate at extremely high pressure. Installation should be performed by a technician familiar with GM Gen V direct-injection fuel systems.
• Follow current GM service procedures regarding injector seals, retaining hardware, fuel pipes, torque specifications, and any components designated for replacement after disassembly.
• Verify the calibration, fuel pressure, fuel trims, leaks, and proper engine operation after installation before subjecting the vehicle to high load or boost.
• The kit is intended to provide increased fuel-flow capacity; it does not independently increase engine horsepower without an application that requires and is calibrated to use the additional fuel.
• A California Proposition 65 warning applies to the product.