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Chevrolet big-block engine
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The Chevrolet "big block" engine is a term for a series of large-displacement, naturally-aspirated, 90°, overhead valve, gasoline-powered, V8 engines; that were developed and produced by the Chevrolet Division of General Motors, from the 1950s... Wikipedia
Compression ratio: 8.5:1, 9.0:1, 10.25:1, 11.0:1, 12.0:1, 12.5:1, 13.5:1
Cylinder block material: Cast iron
Dry weight: 517–761 lb (235–345 kg)
Power output: 250–1,004 hp (186–749 kW)
Torque output: 385–876 lb⋅ft (522–1,188 N⋅m)