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  5. 427-Inch Aftermarket LS Cranks Out 768 Horsepower at 7,700 RPM

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427-Inch Aftermarket LS Cranks Out 768 Horsepower at 7,700 RPM

A dyno video of a 427-Inch aftermarket LS engine that cranks out 768 horsepower at 7,700 RPM.

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