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Factory Mustang Throttle Body Size Guide

Created by Jay Walling
Date Created: 12/14/2018
Last Updated: 4/6/2023

Looking to add an aftermarket throttle body to your Mustang but not sure what size to get? Check out our throttle body size guide to see what your Mustang came with stock!

Viewing this install and using the information shared is subject to the terms set forth here - View the LMR Install Instructions Disclaimer.
Factory Mustang Throttle Body Size Guide - Factory Mustang Throttle Body Size Guide


Fox Body Stock Throttle Body Sizes (1979-1993 Mustang)

  • 79-93 2.3L (4 Cyl) - 50mm
  • 79-85 5.0L (V8) - 58mm
  • 86-93 5.0L (V8) - 58mm

SN95/New Edge Stock Throttle Body Sizes (1994-2004 Mustang)

  • 94-98 3.8L (V6) - 60mm
  • 94-95 5.0L (GT) - 58 mm
  • 94-95 5.0 L (Cobra) - 60mm
  • 96-04 4.6L (GT) - 65mm (Except The 99' GT - 66.8mm)
  • 96-04 4.6L (Cobra) - Twin 57mm
  • 01 4.6L (Bullitt) - Twin 57mm
  • 99-04 3.8 & 3.9L (V6) - 56mm

S197 Stock Throttle Body Sizes (2005-2014 Mustang)

  • 05-10 4.0L (V6) - 68mm
  • 05-10 4.6L (GT) - Twin 55mm
  • 08 4.6L (Bullitt) - Twin 55mm
  • 07-14 5.4 & 5.8L (GT500) - Twin 60mm
  • 11-14 5.0L (GT) - 80mm
  • 11-14 3.7L (V6) - 68mm

S550 Stock Throttle Body Sizes (2015-2023 Mustang)

  • 15-17 3.7L (V6) - 68mm
  • 15-23 2.3L (4 Cyl | Ecoboost) - 61mm
  • 15-23 5.0L (GT) - 80mm
  • 15-20 5.2L (GT350 | Bullitt) - 87mm
  • 20-2 5.2L (GT500) - 92mm
  • 21-23 5.0L (Mach 1) - 87mm

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About the Author

Jay has written content for Late Model Restoration for over 10 years, producing over 120 articles. Jay has an extensive 25-plus-year background in automotive and is a certified Ford Technician. Read more...