There were twonine 140ci / 2.3L engine offerings in 20 out of the 61 years of Mustang production.
| 1974 |
 Y-code, Standard 88hp 4-cyl
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| 1975 |
 Y-code, Standard 88hp 4-cyl
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| 1976 |
 Y-code, Standard 93hp 4-cyl
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| 1977 |
 Y-code, Standard 93hp 4-cyl
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| 1978 |
 Y-code, Standard 93hp 4-cyl
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| 1979 |
 Y-code, Standard 2.3L 88hp 4-cyl
W-code, Optional 2.3L 130hp 4-cyl Turbo
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| 1980 |
 A-code, Standard 2.3L 88hp 4-cyl
W-code, Optional 2.3L 150hp 4-cyl Turbo
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| 1981 |
A-code, Standard 2.3L 86hp 4-cyl
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| 1982 |
A-code, Standard 2.3L 86hp 4-cyl
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| 1983 |
A-code, Standard 2.3L 90hp 4-cyl
W-code, Optional 2.3L 145hp 4-cyl turbo
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| 1984 |
A-code, Standard 2.3L 88hp 4-cyl
 W-code, Optional 2.3L 145hp turbo 4-cyl
 T-code, SVO 2.3L 175hp turbo 4-cyl
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| 1985 |
A-code, Standard 2.3L 88hp 4-cyl
W-code, Optional 2.3L 145hp turbo 4-cyl
 T-code, SVO 2.3L 175hp turbo 4-cyl (early year)
T-code, SVO 2.3L 205hp turbo 4-cyl (late year)
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| 1986 |
A-code, Standard 2.3L 88hp inline-4
 T-code, SVO 2.3L 200hp inline-4 turbo
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| 1987 |
F-code, 2.3L 90hp inline-4
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| 1988 |
A-code, 2.3L 88hp 4-cyl
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| 1989 |
 A-code, 2.3L 90hp 4-cyl
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| 1990 |
E-code, 2.3L 90hp 4-cyl
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| 1991 |
 M-code, 2.3L 105hp 4-cyl dual plug
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| 1992 |
 M-code, 2.3L 105hp 4-cyl dual plug
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| 1993 |
 M-code, 2.3L 100hp 4-cyl dual plug
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