Engine Specifications

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Stock 428 Cobra Jet and Super Cobra Jet Engine Specifications

Bore4.130 inches
Stroke3.984 inches
Horsepower1968: 335 brake horsepower @ 5600 RPM
1969-1970: 335 brake horsepower @ 5200 RPM
Torque1968: 445 foot-pounds @ 3400 RPM
1969-1970: 440 foot-pounds @ 3400 RPM
Compression Ratio10.6:1