What did the II come with motor wise? And 79-84?
Mustang II:
1974: 2.3L 4-cylinder and 2.8L V6
1975: 2.3L 4-cylinder, 2.8L V6, 302 V8
1976: 2.3L 4-cylinder, 2.8L V6, 302 V8
1977: 2.3L 4-cylinder, 2.8L V6, 302 V8
1978: 2.3L 4-cylinder, 2.8L V6, 302 V8 (302 called a "5.0" for the first time in the 1978 King Cobra)
Fox:
1979: 2.3L 4-cylinder, 2.3L 4-cylinder with a draw-through carburetor, 3.3L I6, 5.0L V8 (which was identical to the engine used the previous year)
1980: 2.3L 4-cylinder, 2.3L 4-cylinder with a draw-through carburetor, 3.3L I6, 4.2L V8
1981: 2.3L 4-cylinder, 2.3L 4-cylinder with a draw-through carburetor, 3.3L I6, 4.2L V8
1982: 2.3L 4-cylinder, 2.3L 4-cylinder with a draw-through carburetor (Canada only), 3.3L I6, 302 V8
1983: 4-cylinder, 2.3L 4-cylinder with EFI, 3.8L V6, 302 V8
1984: 4-cylinder, 2.3L 4-cylinder with EFI (with big improvements, used in the SVO), 3.8L V6, 302 V8
Here's the REAL crazy thing. The 302 in the 75-79 Mustangs? Was almost completely unchanged from the 2-bbl 302 used in the '73 Mustang. That one little anemic smogged-down 2-bbl 302 soldiered on through three generations of Mustang.