CHEVROLET Chevy big block Mark IV Crankshafts

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 5.000 in. Stroke, 7.000 in. Rod, 2.200 Pin, Internal Balance, Chevy, Big Block, Each

Part Number: CPI-BBV42B-MG

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Estimated Ship Date: Dec 8, 2025 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.750 in. Stroke, Chevy, 454, Each

Part Number: ESP-450247506600

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Estimated Ship Date: Oct 16, 2025 if ordered today

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Crankshaft, Internal Balance, Forged 4340 Steel, 4.500 in. Stroke, Chevy, Big Block, Tall Deck, Each

Part Number: ESP-445445006535

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Estimated Ship Date: Oct 16, 2025 if ordered today

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Rotating Assembly, Forged Pistons, H-beam Connecting Rods, Internal Balance, 4.500 in. Stroke, 6.700 in. Rod Length, Chevy, 598, Kit

Part Number: MAN-28598

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Estimated Ship Date: Oct 6, 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: Dec 5, 2025 if ordered today

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Crankshaft, 2-Piece Seal, External Balance, Forged 4340 Steel, 4.25 in. Stroke, Custom Order, Chevy, 454, Each

Part Number: CRO-E95135X4

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Crankshaft, 2-Piece Seal, External Balance, Forged 4340 Steel, 4.375 in. Stroke, Custom Order, Chevy, 454

Part Number: CRO-E95136X4

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.50 in. Stroke, Chevy, 454, Each

Part Number: CRO-E95137X4

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Crankshaft, 2-Piece Seal, External Balance, Forged 4340 Steel, 4.625 in. Stroke, Custom Order, Chevy, 454

Part Number: CRO-E95139X4

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Crankshaft, 2-Piece Seal, External Balance, Forged 4340 Steel, 4.750 in. Stroke, Custom Order, Chevy, 454

Part Number: CRO-E95140X4

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.125 in. Stroke, Custom Order, Chevy, 454

Part Number: CRO-LW95130

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 3.760 in. Stroke, Custom Order, Chevy, 454

Part Number: CRO-LW95132

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.000 in. Stroke, Custom Order, Chevy, 454

Part Number: CRO-LW95133

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.125 in. Stroke, Custom Order, Chevy, 454

Part Number: CRO-LW95134

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.250 in. Stroke, Custom Order, Chevy, 454

Part Number: CRO-LW95135

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Estimated Ship Date: Jan 12, 2026 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: Dec 5, 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: Dec 5, 2025 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.750 in. Stroke, Custom Order, Chevy, 454

Part Number: CRO-LW95136

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.500 in. Stroke, Custom Order, Chevy, 454

Part Number: CRO-LW95137

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.625 in. Stroke, Custom Order, Chevy, 454

Part Number: CRO-LW95139

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Estimated Ship Date: Jan 12, 2026 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: Dec 5, 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: Dec 5, 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: Dec 5, 2025 if ordered today

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Crankshaft, Ultra Light, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 3.760 in. Stroke, Chevy, 454, Each

Part Number: CRO-UL95132

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Crankshaft, Ultra Light, 2-Piece Seal, Internal Balance, Forged 4340, 4.000 in. Stroke, Chevy, 454, Each

Part Number: CRO-UL95133

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Estimated Ship Date: Jan 12, 2026 if ordered today

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