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Street Race Truck More... The Toolbox
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$691.95
$559.76
Holley 112-577 Universal 4BBL Billet 1000 CFM Throttle Body
Holley 112-577 Universal 4BBL Billet 1000 CFM Throttle Body

Holley 112-577 Universal 4BBL Billet 1000 CFM Throttle Body

Universal Fit, Multi-Port Injection (MPI) Throttle Body Style, 4-Barrel Throttle Body Barrels

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Holley 112-577 Universal 4BBL Billet 1000 CFM Throttle Body
Holley 112-577 Universal 4BBL Billet 1000 CFM Throttle Body
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We estimate this item will ship on or before December 17th.
Part # 425112577
Save 19%
$559.76
$691.95
each
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Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 2 business days for Holley to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.

Details

Throttle Body Style:
Multi-Port Injection (MPI)
Throttle Body Barrels:
4-Barrel
Throttle Body Bore Size:
44.45mm
CFM:
1000 CFM
Throttle Body Flange Type:
4-Barrel Square Bore
Throttle Body Material:
Billet Aluminum
Throttle Body Finish:
Anodized
Color:
Natural
TPS Sensor Included:
Yes
IAC Motor Included:
Yes
Injectors Included:
No
Gaskets Included:
Yes
Hardware Included:
Yes
Sold in Quantity:
Each
MFG. Part #:
112-577
GTIN Code:
090127665572

Info

HolleyDAYS are here again! SAVE up to 20% on this part and hundreds of other Holley brands during the 2018 HolleyDAYS sale 11/15/18-12/31/18.

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
Some parts are not legal for use in California or other states with similar laws/regulations

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Videos & Articles
  • After installing the intake manifold and carbs on his 8BA, Heath P. continues on to the fuel and throttle setup. See how he mounts each part while making modifications to complete the install.
  • Do you have carbs sitting on the shelf waiting to be put on? Heath talks about the preparation and parts needed to install a set of Super 9-7 Carbs on his 1949 Flathead 8BA V8 Model A.
  • One of the most important parts of your racing operation is the engine. This article gives a detailed overview on how to maintain your engine to get the most out of it for as long as possible. Also learn some tips to prolong the life of your engine.

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