340 Steel Crank

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How Bad Did Mopar's 340 beat Ford & Chevy? Shocking New Data!
A forged 340 Mopar crankshaft is typically capable of handling upwards of 600 horsepower. While a cast crank is generally good up to around 500 horsepower, the forged version offers significantly increased strength and durability, making it suitable for higher-horsepower applications.