Engine Specifications

Stock 428 Cobra Jet and Super Cobra Jet Engine Specifications

Bore 4.130 inches
Stroke 3.984 inches
Horsepower 1968: 335 brake horsepower @ 5600 RPM
1969-1970: 335 brake horsepower @ 5200 RPM
Torque 1968: 445 foot-pounds @ 3400 RPM
1969-1970: 440 foot-pounds @ 3400 RPM
Compression Ratio 10.6:1