1968 Mustang Engine Information – 390 cubic inch V-8 (6.4 L FE V8)
10,494 mustangs were produced and sold with 390 cubic inch engines. The engine came standard with a 490 Autolite carburetor rather than the Holly installed in previous years. 1969 was the last year a 390 would be installed in a Mustang by Ford. All future years used 427’s, 428’s and 429’s for the large block power plants.
Engine Basics
| Year |
1968 |
1968 |
| bbl |
2 |
4 |
| Cylinders |
8 |
8 |
| Displacement |
390 cu / 6.4 liters) |
390 cu / 6.4 liters) |
| Power (hp) |
265 hp @ 4,400 RPM |
|
| Torque (lb/ft) |
390 lb/ft @ 2,600 RPM |
|
| Compression |
9.5:1 |
10.5:1 |
| Bore x Stroke |
4.05 x 3.784 |
4.05 x 3.784 |
Engine Specs (390 cid V8)
Clutch information. All 390 engines with either a 3 or 4 speed have the same clutch specs. The pressure plate is 11.5″ with 12 springs. The disc is 11.5″ with 8 springs
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