Fuel Injector Clinic (FIC) Fuel Injector Sets for 5.7L, 6.1L, 6.2L & 6.4L Gen 3 HEMI Engines
Fuel Injector Clinic injector sets are a premium solution for Gen 3 HEMI engines, supporting everything from mild bolt-on builds to extreme boosted and race combinations. Each injector set is flow tested, data matched, and designed to deliver excellent drivability, consistent fueling, and precise tuning control.
This listing contains multiple injector size options. Please select the injector size that best matches your engine combination, fuel type, and horsepower goals using the guide below.
Why Fuel Injector Clinic?
- Individually flow tested and precisely matched injector sets
- Data Match technology with included serial-numbered flow data sheet
- Excellent short pulse width control for smooth idle and drivability
- High impedance (saturated) injectors for direct plug-and-play installation
- E85 compatible internals and materials
- Includes required O-rings for proper factory fitment
- Lifetime warranty against defects in manufacturing
How to Choose the Correct Injector Size
Injector sizing depends primarily on horsepower goal, fuel type, and boost level. E85 and high boost applications require significantly more injector than gasoline combinations. Always plan for headroom rather than operating injectors at maximum duty cycle.
If you are unsure which injector size is right for your build, contact HHP with your full combination and we will help you select the correct injectors.
Note: Larger injectors require proper fuel pump capacity, rail flow, and pressure control. Always ensure your fuel system can support your power goal.
Injector Size Comparison Guide
| Injector Size / SKU - Data | Flow @ OE 58 psi | HP (Gasoline) | HP (E85) | Typical Applications |
|---|---|---|---|---|
| 445cc / is153-0445h - Plug-N-Play Data |
50 lb/hr | ~450–475 HP | ~350 HP | NA Stock engines, bolt-ons, mild cam upgrades on gasoline |
| 525cc / is153-0525h - Plug-N-Play Data |
58 lb/hr | ~550–575 HP | ~425 HP | NA street performance, stroker, mild boost, bolt-ons with E85 |
| 650cc / is153-0650h - Plug-N-Play Data |
72 lb/hr | ~700 HP | ~525 HP | Street / Strip builds, moderate boost, E85 capable |
| 775cc / is153-0775h - Plug-N-Play Data |
85 lb/hr | ~850 HP | ~650 HP | High output NA builds, boosted street applications |
| 1000cc / is153-1000h - Plug-N-Play Data |
100 lb/hr | ~1000 HP | ~750 HP | High boost, aggressive E85 street / strip builds |
| 1200cc / is153-1200h - Plug-N-Play Data |
130 lb/hr | ~1200 HP | ~900 HP | Serious boost, high horsepower E85 builds |
| 1400cc / is153-1400h - Plug-N-Play Data |
155 lb/hr | ~1400 HP | ~1050 HP | Very high horsepower turbo or blower applications |
| 1440cc / is153-1440h - Plug-N-Play Data |
160 lb/hr | ~1450 HP | ~1100 HP | High output race builds requiring extra headroom |
| 1650cc / is153-1650h - Plug-N-Play Data |
180 lb/hr | ~1650 HP | ~1250 HP | Extreme horsepower, competition-level builds |
| 2150cc / is153-2150h - Plug-N-Play Data |
240 lb/hr | ~2150 HP | ~1600 HP | Maximum horsepower race and competition engines |
Tip: Swipe left/right on mobile devices to view the full chart.
Note: HP values are approximate and assume proper fuel system, pump capacity, pressure stability, and safe injector duty cycle.
Pro Tip: If you plan to add boost, nitrous, or E85 in the future, we recommend selecting injectors one size larger to allow for future upgrades and tuning headroom.
Fitment
- 5.7L HEMI
- 6.1L SRT HEMI
- 6.4L / 392 HEMI
- 6.2L Supercharged Hellcat
High impedance (saturated) injectors designed for direct plug-and-play installation using factory connectors.
What's Included
- Set of 8 Fuel Injector Clinic 48mm length matched injectors
- Data Match Sheet with individual flow test results
- Required O-rings pre-installed
HHP Fitment & Power Guidance
Selecting the proper injector size is critical for power, drivability, and tuning success. Oversized injectors can complicate tuning, while undersized injectors can limit horsepower and increase duty cycle risk. If you need help choosing the right injectors for your build, contact HHP and we will assist you.
