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Holley 112-589

Throttle Body 90mm

Holley 112-589


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Holley 112-589 Throttle Body 90mm $466.95
Throttle Body
  • 90mm
  • Billet Aluminum
  • Cable Driven Applications
  • LS Throttle Body w/Low RPM Taper
  • Black Anodized

  • Holley 112-589 Details

    GM LS Engine Throttle Bodies

    Holley's billet LS Throttle Bodies are the most feature loaded available. Holley went back to the drawing board and built the ultimate air valve for your LS engine! The 112-589 throttle body features a 90 millimeter bore and a low RPM drive friendly taper. Innovative features like Idle Bleed Adjustment, TPS Clocker, and closable PCV Passage Valve, make them the ultimate throttle bodies for ease of installation and tuning. Regardless of whether you have a stock LS engine, turbo, supercharger, or a big cam engine sucking gulps of air, Holley's throttle bodies are maximized for your application. The barrier protection of the black anodized finish also offers up a modern tech look!

  • TPS CLOCKER (patent pending) allows the TPS to be rotated back into the ECU's required idle voltage range. Modified engines no longer suffer from problems related to TPS voltage!
  • IDLE BLEED allows adjustment of your idle without affecting throttle position or TPS voltages at idle!
  • PCV PASSAGE VALVE closes to accommodate forced induction applications! No more plugging to block off PCV!
  • TAPERED TRANSITION eliminates low RPM drivability issues
  • PREMIUM BILLET BODY supports the high tolerance design and look your performance engine deserves!
  • BLACK ANODIZED FINISH for superior corrosion resistance and serious good looks
  • CRUISE CONTROL provision built in for cruise control cable
  • MOUNTING HARDWARE and gasket included
  • Fits the following intake manifolds: Stock LS2, Stock LS3, Stock LS7, Holley LS Mid-Rise, Holley 95mm Hi-Ram, Fast™ LSX, Edelbrock Pro-Flo XT using 4 bolt TBs & Most other 90 through 95mm LS intakes using 4 bolt TBs

  • Specifications:

    Manufacturer's Part Number:

    LS Throttle Bodies with Simple Installation & Tuning

    Whether running a turbo, supercharger, or big ol' cam, Holley Throttle Bodies are maximized for your application with the largest bore available & the ultimate air valve for GM LS engines. An all-new design boasts a 95mm or 105mm bore for wide-open throttle (tapered option offers low-RPM drivability for the street), idle bleed adjustment, PCV passage defeat valve, and throttle position sensor clocker that helps maintain proper idle voltage (especially on modified engines).

  • Cable-driven throttle plate
  • Aluminum construction
  • Anodized black
  • Idle bleed screw adjusts idle without affecting throttle position or TPS voltage at idle
  • PCV passage valve setting provides easy PCV block-off on forced induction applications (no need to tap & install plugs to block PCV)
  • TPS "clocker" prevents idle adjustment issues related to throttle sensor by allowing sensor to be rotated back to ECU's required idle voltage range

  • Was wondering if this will fit my 2010 Silverado 6.0?  And how much power gain will this give me ?

    Asked by: Conner11
    This should fit your application, the power increase will depend on the engine modifications that can take advantage of the increased air flow.
    Answered by: Rusty B
    Date published: 2017-10-26
    • y_2018, m_3, d_21, h_23CST
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