Product Summary

Universal Fit, Multi-port Injection Style, ECM Included

    Rebates Available

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    Key Specs

    MFG. Part #78004
    Injection StyleMulti-port
    Injector Size55 lbs./hr.
    Max Horsepower Rating750
    ECM IncludedYes
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    Need To Know

    Quick and Easy Returns

    Return Policy

    FiTech 78004 Details

    78004 Ultimate LS Kit LS1/LS2/LS6 750HP With Trans Control, With coil pack set

    Additional Ultimate LS features:

    • Optional GM transmission control feature is suitable for 4L60, 4L65, 4L70, or 4L80
    • Black anodized aluminum parts for style and corrosion resistance
    • High-flow, cable-operated throttle body
    • Bosch wideband-controlled
    • Stainless oxygen sensor bung
    • Compatible with car and truck coils
    • AN fittings and fuel crossover
    • Works with custom cams
    • Designed for applications making at least 6 in. of vacuum at idle
    • 24X and 58X crank and cam compatible
    • Programmable touch screen hand-held controller with data log features
    • Suction cup mounting bracket

    Rebates

    FiTech Up To $500 Off Select Parts Summer Sale

    FitechSummerSale2026

    FiTech Fuel Injection is pleased to announce our Summer Performance Sale, running from July 1, 2026, through July 31, 2026. For a limited time, customers can save up to $500 across the FiTech lineup, making it the perfect opportunity to upgrade with high-quality EFI systems, fuel delivery, ignition, and accessories. The sale prices are applicable only to purchases made within the specified sale period, from July 1, 2026, to July 31, 2026. No rainchecks or exceptions will be provided. Sale price is valid through July, regular MAP Pricing will be reinforced on August 1, 2026. This sale cannot be combined with any other offers, discounts, or promotions. Co-ops will be honored.

    CARB Warning

    For race/ off road use or for use on pre-1966 vehicles.

    Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

    FiTech 78004 Specifications

    KEY SPECS
    MFG. Part #78004
    BrandFiTech
    Injection StyleMulti-port
    Injector Size55 lbs./hr.
    Max Horsepower Rating750
    ECM IncludedYes
    GENERAL
    Fuel Injection System TypeMulti-port Throttle Body
    User TunableYes
    Self TuningYes
    Injectors IncludedYes
    Intake Manifold IncludedYes
    Intake Section IncludedComplete
    Metering StyleSpeed density
    EGRNo
    Throttle Body IncludedYes
    Throttle Body MaterialAluminum
    Throttle Body FinishPowder Coated
    Intake MaterialAluminum
    Intake FinishAnodized
    Fuel Pump IncludedNo
    Calibration Module IncludedYes
    Wiring Harness IncludedYes
    Fuel Pressure Regulator IncludedNo
    Distributor IncludedNo
    MAP Sensor IncludedYes
    IAC Motor IncludedYes
    IAT Sensor IncludedYes
    TPS Sensor IncludedYes
    Use with Power AdderYes
    NotesLS1 short intake manifold with transmission control. Includes coil pack set.
    GTIN Code812061034043
    Sold in QuantityKit
    Transmission Controller IncludedYes
    Multi-Port Fuel Rails IncludedYes
    Timing Control CompatibleYes

    Questions & Answers

    Fitment

    • GM LS6

    • GM LS2

    • GM LS1

    • GM LS1

    • GM LS1

    • GM LS6

    • GM LS2

    • GM LS2

    • GM LS1

    • GM LS1

    • GM LS2

    Customer Impersonation Script