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FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 79003 Injection, LS, Kit LS1/LS2/LS6 -750HP w/o Trans Control, w/ led coil pack set

SKU: FIF79003

Fuel Injection Systems

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 79003 Injection, LS, Kit LS1/LS2/LS6 -750HP w/o Trans Control, w/ led coil pack set

SKU: FIF79003

Fuel Injection Systems
A$4,919.48
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

LS motors have a great base for power, but what they really need is something wicked to wake them up. FiTech LS EFI 750 HP fuel injection systems have alarming power, exciting style, and will take you and your vehicle to the edge. FiTech fabricated many aluminum parts for these systems, including the low-profile 102mm billet throttle body, high-volume billet fuel rails, and an intake manifold with a 1,500 to 6,500 rpm powerband and 3mm construction.

Sequential spark and fuel control mate the 55 lbs./hr. injectors, plug-and-play wiring harness, and color touch screen self-learning ECU. This allows you to program two fan control outputs, most tach and speedometer output drivers, and target AFR and timing on-the-fly. A suction cup mounting bracket puts the controller at your fingertips and allows for impressive visual aids.

The optional transmission control feature is suitable for 4L60, 4L65, 4L70, or 4L80 GM transmissions. Awaken the beast and feed its needs with an ultra-performing FiTech LS EFI 750 HP fuel injection system with transmission controller.

Additional features:

* Programmable touch screen hand-held controller with data log features
* 3-bar MAP sensor automatically detects up to 30 psi boost
* AN fittings and fuel crossover
* 24X and 58X crank and cam-compatible and works with custom cams
* Black anodized aluminum parts for style and corrosion resistance
* High-flow, cable-operated throttle body
* Dual Bosch wideband with dual trim controlled
* Knock sensor control
* Stainless oxygen sensor bung
* Compatible with car and truck coils
* Designed for applications making at least 6 inches of vacuum at idle

Part Type

Fuel Injection Systems

Data: v4.2 - Upd: 2026-10-02 04:28:04

Specifications

Product Attributes - Brand
FiTech Fuel Injection
Product Attributes - Manufacturer's Part Number
79003
Product Attributes - Part Type
Fuel Injection Systems
Product Attributes - Product Line
FiTech Ultimate LS EFI 750 HP Fuel Injection Systems
Product Attributes - UPC
812061034333
Product Attributes - Fuel Injection Style
Multi-port
Product Attributes - Fuel Injection System Type
Multi-port Throttle Body
Product Attributes - Maximum Horsepower with Gas
750
Product Attributes - Timing Control Compatible
Yes
Product Attributes - ECM Included
Yes
Product Attributes - Self Tuning
Yes
Product Attributes - User Tunable
Yes
Product Attributes - Fuel System Included
None
Product Attributes - Ignition System Included
Coil packs
Product Attributes - Power Distribution Included
None
Product Attributes - User Interface Included
4.5 in. display
Product Attributes - EGR
No
Product Attributes - Transmission Controller Included
No
Product Attributes - Metering Style
Speed density
Product Attributes - Intake Material
Aluminum
Product Attributes - Intake Color
Black
Product Attributes - Multi-Port Fuel Rails Included
Yes
Product Attributes - Throttle Body Included
Yes
Product Attributes - Throttle Body Mounting Flange
GM LS2 4-bolt
Product Attributes - Throttle Body Material
Cast aluminum
Product Attributes - Throttle Body Color
Black
Product Attributes - Injectors Included
Yes
Product Attributes - Injector Size (lbs/hr)
55 lbs./hr.
Product Attributes - Calibration Module Included
Yes
Product Attributes - Wiring Harness Included
Yes
Product Attributes - Oxygen Sensor Included
Yes
Product Attributes - Fuel Pressure Regulator Included
No
Product Attributes - MAP Sensor Included
Yes
Product Attributes - IAT Sensor Included
Yes
Product Attributes - TPS Sensor Included
Yes
Product Attributes - IAC Motor Included
Yes
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
LS1 short intake manifold without transmission control. Includes led coil pack set.

Reference Information

Brand Name/s Fitech Fuel Injection
StreetFX SKU fif79003
SFX Item ID 5178204
Supplier Item Code 5178204
Manufacturer SKU 79003
Manufacturer UPC 812061034333
Alternative References LS1/LS2/LS6, -750HP

Compatibility

Application Data
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1997
    Ending Year2004
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.7L/350
    Fuel TypeALCOHOL
    Cylinder Head TypeCathedral port
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1997
    Ending Year2004
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.7L/350
    Fuel TypeFLEX
    Cylinder Head TypeCathedral port
    Application NotesE85 requires 30 percent more fuel to equal the same power level, confirm your EFI system is capable of flowing the extra E85 to reach horsepower goals.
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1997
    Ending Year2004
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.7L/350
    Fuel TypeGAS
    Cylinder Head TypeCathedral port
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1997
    Ending Year2004
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.7L/350
    Fuel TypeMETHANOL
    Cylinder Head TypeCathedral port
  • UniversalNo
    MakeCHEVROLET
    Beginning Year2001
    Ending Year2005
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.7L/350
    Fuel TypeALCOHOL
    Cylinder Head TypeCathedral port
  • UniversalNo
    MakeCHEVROLET
    Beginning Year2001
    Ending Year2005
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.7L/350
    Fuel TypeFLEX
    Cylinder Head TypeCathedral port
    Application NotesE85 requires 30 percent more fuel to equal the same power level, confirm your EFI system is capable of flowing the extra E85 to reach horsepower goals.
  • UniversalNo
    MakeCHEVROLET
    Beginning Year2001
    Ending Year2005
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.7L/350
    Fuel TypeGAS
    Cylinder Head TypeCathedral port
  • UniversalNo
    MakeCHEVROLET
    Beginning Year2001
    Ending Year2005
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.7L/350
    Fuel TypeMETHANOL
    Cylinder Head TypeCathedral port
  • UniversalNo
    MakeCHEVROLET
    Beginning Year2005
    Ending Year2009
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    Fuel TypeALCOHOL
    Cylinder Head TypeCathedral port
  • UniversalNo
    MakeCHEVROLET
    Beginning Year2005
    Ending Year2009
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    Fuel TypeFLEX
    Cylinder Head TypeCathedral port
    Application NotesE85 requires 30 percent more fuel to equal the same power level, confirm your EFI system is capable of flowing the extra E85 to reach horsepower goals.
  • UniversalNo
    MakeCHEVROLET
    Beginning Year2005
    Ending Year2009
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    Fuel TypeGAS
    Cylinder Head TypeCathedral port
  • UniversalNo
    MakeCHEVROLET
    Beginning Year2005
    Ending Year2009
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    Fuel TypeMETHANOL
    Cylinder Head TypeCathedral port

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