Product Summary

Universal Fit, 4-Barrel Throttle Body Barrels, Natural

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    Key Specs

    MFG. Part #112-578
    BrandHolley
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    Holley 112-578 Details

    If You're thinking of building either a high performance or race multi-point fuel injection system for your engine, look no further than Holley for the throttle body. Holley offers a line of universal throttle bodies that range in sizes from 1000 CFM to 2000 CFM and are available with standard square bore or DOMINATOR® flanges. These billet beauties will provide all the air your motor can ingest. Sporting premium design features that enhance their ruggedness and durability, Holley performance throttle bodies are built to take the most severe usage. They™ll look great as well sitting on top of your street rod or street/strip engine. They have the looks to go with the brawn!

    • Universal
    • CNC Billet Construction
    • Progressive Linkage System
    • More Precise Throttle Control
    • Better Drivability
    • Maximum Airflow
    • Minimizes Air Turbulence
    • Throttle shafts are offset with respect to the throttle plates so engine vacuum will assist throttle plate closure
    • Provision for installing Holley P/N 20-113, TH-700R4 over-drive transmission kick-down cable bracket
    • Three manifold vacuum ports are available including one for PCV
    • Designed with a DOMINATOR® mounting flange
    • Utilizes 2.25 throttle bores.

    CARB Warning

    For race/ off road use only

    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. 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.

    Holley 112-578 Specifications

    KEY SPECS
    MFG. Part #112-578
    BrandHolley
    GENERAL
    Throttle Body StyleMulti-Port Injection (MPI)
    Throttle Body Barrels4-Barrel
    Throttle Body Bore Size57.15mm
    CFM2000 CFM
    Throttle Body Flange Type4-Barrel Dominator
    Throttle Body MaterialAluminum
    Throttle Body FinishNatural
    ColorNatural
    TPS Sensor IncludedYes
    IAC Motor IncludedYes
    Injectors IncludedNo
    Gaskets IncludedYes
    Hardware IncludedNo
    GTIN Code090127676929
    Sold in QuantityEach
    Customer Impersonation Script