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Holley Performance 112-577 Throttle Body

4844546 - 112-577

4150 Flange - 4 bbl - 1000 cfm - Clear

112-577 Throttle Body Holley Performance

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Holley Performance - Throttle Body - Part#: 112-577 Features:

  • CNC Billet Aluminum
  • Progressive Linkage System
  • More Precise Throttle Control
  • Better Drivability
  • Max Air Flow
  • Minimizes Air Turbulence
  • Offset So Engine Vacuum Assists w/Throttle Plate Closure

View the Full List of Automotive Applications »

Below is an abbreviated list of applications for the Throttle Body.


Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR Sprint Cup team and nearly every NHRA Pro–Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies - Hooker Headers, Flowtech Exhaust, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.

Shipping Information

  • Item Requires Shipping
  • 4.2 lbs.
  • W5.0000” x H3.7500” x L11.2500”

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