Mustang 5.0 Specs 

Year Size Horses Torque C.R. Intake
1979 302/5.0L 140 @ 3600 250 @ 1800 8.4:1 2-Bbl Carb
1980 255/4.2L 118 @ 3800 193 @ 2200 8.8:1 2-Bbl Carb
1981 255/4.2L 115 @ 3400 195 @ 2200 8.2:1 2-Bbl Carb
1982 (1) 255/4.2L 111 @ 3400 194 @ 1600 8.2:1 2-Bbl Carb
1982 (1) 302/5.0L 157 @ 4200 240 @ 2400 8.3:1 2-Bbl Carb
1983 302/5.0L 175 @ 4200 245 @ 2400 8.3:1 4-Bbl Carb
1984 (2) 302/5.0L 175 @ 4200 245 @ 2400 8.3:1 4-Bbl Carb
1984 (2) 302/5.0L 165 @ 3800 245 @ 2000 8.3:1 CFI
1985 (3) 302/5.0L 180 @ 4200 260 @ 2600 8.4:1 CFI
1985 (3) 302/5.0L 210 @ 4400 270 @ 3200 8.4:1 4-Bbl Carb
1986 302/5.0L 200 @ 4000 285 @ 3000 9.2:1 SEFI SD
1987 302/5.0L 225 @ 4200 300 @ 3200 9.0:1 SEFI SD
1988 (4) 302/5.0L 225 @ 4200 300 @ 3200 9.0:1 SEFI
1989 302/5.0L 225 @ 4200 300 @ 3200 9.0:1 SEFI MAS
1990 302/5.0L 225 @ 4200 300 @ 3200 9.0:1 SEFI MAS
1991 302/5.0L 225 @ 4200 300 @ 3200 9.0:1 SEFI MAS
1992 302/5.0L 225 @ 4200 300 @ 3200 9.0:1 SEFI MAS
1993 (5) 302/5.0L 205 @ 4200 275 @ 3200 9.0:1 SEFI MAS
1993 (5) 302/5.0L 235 @ 4600 280 @ 4000 9.0:1 SEFI MAS

(1) 1982 with C-5 Auto had the 255, with the T-4 Man had the 302.
(2) 1984 with T-5 Man had the Carb, with the AOD had the CFI.
(3) 1985 with T-5 Man had the Carb, with the AOD had the CFI.
(4) 49-State models had SD, California-only models had MAS.
(5) 1993 model made 205 hp, the GT-40 Cobra model made 235 hp.

. 1980-82
255/4.2L 		1979-93
302/5.0L
Bore 3.680-in 4.00-in
Stroke 3.00-in
Bore spacing 4.380-in
Main journal diameter 2.2486-in
Rod journal diameter 2.1232-in
Connecting rod length 5.090-in
Crankshaft shaft-to-deck 8.205-in
Compression distance 1.605-in
Assembly width 24.00-in
Assembly length 28.00-in
Assembly height 27.50-in
Valve sizes (in/out) (1) 1.68-in /
1.46-in 		1.762-in /
1.46-in