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Lunati BBC 4.500 Sledgehammer Crankshaft

Part Number BQ425KN
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Lunati BBC 4.500 Sledgehammer Crankshaft
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$925.00
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Sledgehammerᆴ crankshafts are the perfect foundation for a budget minded engine build. Forged from 4340 non-twist steel, this line of durable Lunati cranks feature a special Nitride heat treatment, sonic cleaning, and micro-polishing for added insurance in performance street engines and mild race applications. Each crankshaft incorporates many premium features normally found on high end race crankshafts, such as drilled lightening holes in the pin arms to reduce reciprocating mass.Sledgehammerᆴ crankshaft for Chevrolet big block applications Stroke: 4.500 in. Main Bearing: 2.750 in. Rod Journals: 2.200 in. Minimum Rod Length: 6.535 in. Rear Main Seal: 2-piece Part Number: BQ425KN
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