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Product Summary

LQ4, LQ9, LS1, LS2, LS6, LY6, Anodized, Black

  • A unique TPS clocker allows the TPS to be rotated back into the ECU's required idle voltage range
  • The idle bleed allows adjustment of your idle without affecting throttle position or TPS voltages at idle!
  • Made from durable, yet lightweight billet aluminum
  • Features a black anodized finish for superior corrosion resistance and serious good looks
  • Will fit Holley 105mm Hi-Ram, Fast LSXR & LSXRT, MSD® Atomic AirForce, Most other 102 through 105mm LS intakes using 4 bolt TBs

Key Specs

MFG. Part #112-583
BrandHolley

Need To Know

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Return Policy

Holley 112-583 Details

Holley's BILLET LS Throttle Bodies are the BIGGEST BORE - MOST FEATURE LOADED available. Holley went back to the drawing board and built the ultimate air valve for your LS engine! This all new design boasts a huge 105 millimeter bore for when WOT is all that matters. 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 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!
  • OVERSIZED BORE compared to other LS throttle bodies
  • STRAIGHT BORE (no taper) minimizes turbulence and maximizes airflow for race applications
  • 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
  • CABLE DRIVEN APPLICATION
  • Fits the following intake manifolds: Holley 105mm Hi-Ram, Fast LSXR & LSXRT, MSD® Atomic AirForce, Most other 102 through 105mm LS intakes using 4 bolt TBs

Charts

CARB Warning

Follow EPA, CARB, and state regulations for engine changes

Emissions warning: this part is for vehicle engine changes, not direct oem engine replacements. In California, engine changes are legal when done in compliance with California bureau of automotive repairs (bar) engine change policy. For assistance, call bar referee at: (800) 622-7733. And see https://bar.Ca.Gov/consumer/smog_check_program/engine_changes. All customers must comply with federal epa mobile source enforcement memorandum no. 1a (and addendum) and all applicable state regulations when conducting engine changes. Improper installation and/or use of this part in California may subject the installer and/or owner to a $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 laws of all states for use of this engine change part on makes or models of vehicles that render them noncompliant with applicable state and/or federal emission laws with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine

Holley 112-583 Specifications

KEY SPECS
MFG. Part #112-583
BrandHolley
GENERAL
Speedway Motors Catalog Part #425-112583
Throttle Body StyleMulti-Port Injection (MPI)
Throttle Body Barrels1-Barrel
Throttle Body Bore Size105mm
Throttle Body Flange TypeLS 4-Bolt
Throttle Body MaterialBillet Aluminum
Throttle Body FinishAnodized
ColorBlack
TPS Sensor IncludedNo
IAC Motor IncludedNo
Injectors IncludedNo
Gaskets IncludedYes
Hardware IncludedNo
Emission Code3
GTIN Code090127686522
Sold in QuantityEach