427-Inch Aftermarket LS Cranks Out 768 Horsepower at 7,700 RPM427-Inch Aftermarket LS Cranks Out 768 Horsepower at 7,700 RPM
2022-10-17
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Westech Performance dyno tests a 427-inch aftermarket LS small-block that puts out 768 horsepower at 7,700 rpm!