The Amsoil Mopar Muscle Engine Challenge Prism Racing Engine Builders
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Prism Racing joined the AMSOIL/Mopar Muscle Engine Challenge this year, with a high-revving low-deck big-block. Topped with 440 Source Stealth Heads, this 406-inch engine made 647 horsepower for a rating of 1.593 horsepower per cubic inch. View Related Article
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