CHEVROLET Chevy big block Mark IV Crankshafts

Crankshaft, 2-piece Seal, Internal Balance, Forged 4340 Steel, 4.375 in. Stroke, 2.200 in. Pin, Chevy, 454

Part Number: CPI-BBB42B-MG

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Estimated Ship Date: Oct 2, 2025 if ordered today

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Crankshaft, 2-piece seal, Internal balance, Forged 4340 Steel, 4.375 in. Stroke, Chevy, Each

Part Number: CRO-95136

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Crankshaft, 2-piece seal, External balance, Forged 4340 Steel, 4.500 in. Stroke, Chevy, Each

Part Number: CRO-95137

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Crankshaft, 2-piece seal, External balance, Forged 4340 Steel, 4.625 in. Stroke, Chevy, Each

Part Number: CRO-95139

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Crankshaft, 2-piece seal, Internal balance, Forged 4340 Steel, 4.000 in. Stroke, Chevy, Each

Part Number: CRO-95133

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Crankshaft, 2-piece seal, Internal balance, Forged 4340 Steel, 4.250 in. Stroke, Chevy, Each

Part Number: CRO-95135

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Crankshaft, 2-piece seal, External balance, Forged 4340 Steel, 4.750 in. Stroke, Chevy, Each

Part Number: CRO-95140

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Crankshaft, 2-piece seal, Internal balance, Forged 4340 Steel, 4.625 in. Stroke, Chevy, 454, 2.200 Pin, Each

Part Number: CPI-BBR42B-MG

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Estimated Ship Date: Oct 10, 2025 if ordered today

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Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.750 in. Stroke, 6.385 in. Rod, 2.100 Pin, Internal Balance, Chevy, Big Block, Each

Part Number: CPI-BBJ43B-MG

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Estimated Ship Date: Oct 10, 2025 if ordered today

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Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.875 in. Stroke, 6.385 in. Rod, 2.200 Pin, Internal Balance, Chevy, Big Block, Each

Part Number: CPI-BBM42B-MG

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Estimated Ship Date: Oct 10, 2025 if ordered today

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Crankshaft, 2-piece seal, Internal balance, Forged 4340 Steel, 4.000 in. Stroke, Chevy, 454, 2.200 Pin, Each

Part Number: CPI-BBO42B-MG

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Estimated Ship Date: Oct 10, 2025 if ordered today

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Crankshaft, Magnum, Forged 4340 Steel, 5.300 in. Stroke, Internal Balance, 2-Piece Seal Style, Chevy, Each

Part Number: CPI-BB542B-MG

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Estimated Ship Date: Oct 10, 2025 if ordered today

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Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 4.250 in. Stroke, 6.385 in. Rod, 2.100 Pin, Internal Balance, Chevy, Big Block, Each

Part Number: CPI-BBP43B-MG

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Estimated Ship Date: Oct 10, 2025 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Billet Steel, 4.375 in. Stroke, Chevrolet, Big Block, Each

Part Number: BRO-S0015

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Estimated Ship Date: Aug 25, 2025 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Billet Steel, 4.250 in. Stroke, Chevrolet, Big Block, Each

Part Number: BRO-S0013

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Estimated Ship Date: Aug 25, 2025 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.500 in. Stroke, Chevrolet, Big Block, Each

Part Number: BRO-S0016

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Estimated Ship Date: Aug 25, 2025 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.250 in. Stroke, Chevrolet, Big Block, Each

Part Number: BRO-S0012

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Estimated Ship Date: Aug 25, 2025 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.375 in. Stroke, Chevrolet, Big Block, Each

Part Number: BRO-S0014

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Estimated Ship Date: Aug 25, 2025 if ordered today

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4340 Forged Pro Series Lightweight

Part Number: SCA-445405C-2

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Estimated Ship Date: Oct 1, 2025 if ordered today

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4340 Forged Superlight

Part Number: SCA-445440C-3

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Estimated Ship Date: Oct 1, 2025 if ordered today

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Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 4.125 in. Stroke, 6.385 in. Rod, 2.200 Pin, Internal Balance, Chevy, Big Block, Each

Part Number: CPI-BBU42B-MG

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Estimated Ship Date: Oct 10, 2025 if ordered today

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Crankshaft, Stock Eliminator, 2-Piece, 3.773 in. Stroke, Forged 4340 Steel, Internal Balance, Chevy, Big Block, Each

Part Number: CPI-BB1542BSE

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Estimated Ship Date: Oct 10, 2025 if ordered today

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Crankshaft, Stock Eliminator, 2-Piece, 4.011 in. Stroke, Forged 4340 Steel, Internal Balance, Chevy, Big Block, Each

Part Number: CPI-BB1642B-SE

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Estimated Ship Date: Oct 10, 2025 if ordered today

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Crankshaft, 2-piece Seal, Internal Balance, Forged 4340 Steel, 3.760 in. Stroke, 2.200 in Pin, Chevy, 396, 402

Part Number: CPI-BB3425-CS

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Estimated Ship Date: Sep 29, 2025 if ordered today

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Crankshaft, 2-piece Seal, Internal Balance, Forged 4340 Steel, 4.625 in. Stroke, 2.200 in. Pin, Chevrolet, Each

Part Number: CPI-BBR425-CS

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Estimated Ship Date: Sep 29, 2025 if ordered today

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