Factory Mustang Throttle Body Size Guide

Date Created: 12/14/2018

Last Updated: 3/19/2025

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!

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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
93 5.0L (Cobra) - 65mm

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

S650 Stock Throttle Body Sizes (2024-2025 Mustang)

24-25 2.3L (4 Cyl | Ecoboost) - 60mm
24-25 5.0L (GT) Dual Throttle Bodies - 80mm
24-25 5.0L (Dark Horse) Dual Throttle Bodies - 80mm

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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...