CHEVROLET Chevy big block Mark IV Engines & Components

ROTATING ASSEMBLY KIT-BBC 555 4.250/4.560 F/T

Part Number: MAN-38555H

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Estimated Ship Date: Jan 20, 2026 if ordered today

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ROTATING ASSEMBLY KIT-BBC 555 4.250/4.560 F/T

Part Number: MAN-38555HX

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KIT-BBC 565 4.250/4.600 -3cc F

Part Number: MAN-38565

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ROTATING ASSEMBLY KIT-BBC 565 4.250/4.600 -3cc F

Part Number: MAN-38565H

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ROTATING ASSEMBLY KIT-BBC 565 4.250/4.600 -3cc F

Part Number: MAN-38565HX

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KIT-BBC 572 4.250/4.625 -3cc F

Part Number: MAN-38572

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ROTATING ASSEMBLY KIT-BBC 572 4.250/4.625 -3cc F

Part Number: MAN-38572H

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ROTATING ASSEMBLY KIT-BBC 572 4.250/4.625 -3cc F

Part Number: MAN-38572HX

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Pulley Kit, Serpentine, Ultra Drive, Aluminum, Clear Powdercoated, Chevy, Big Block, Ultra, Kit

Part Number: MCH-20350

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Pulley Kit, Serpentine, Ultra Drive, Aluminum, Black Powdercoated, Chevy, Big Block, Ultra, Kit

Part Number: MCH-20360-08

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Pulley Kit, Serpentine, Ultra Drive, Aluminum, Black Powdercoated, Chevy, Big Block, Deluxe, Kit

Part Number: MCH-20370

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Pulley Kit, Serpentine, Ultra Drive, Aluminum, Clear Powdercoated, Chevy, Big Block, Deluxe, Kit

Part Number: MCH-20380

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Pulley Kit, Serpentine, Ultra Drive, Aluminum, Clear Powdercoated, Chevy, Big Block, Custom, Kit

Part Number: MCH-20385

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Pulley Kit, Style Track, Serpentine, Aluminum, Clear Powdercoated, Standard Ratio, Chevy, Big Block, Kit

Part Number: MCH-21270

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Jan 19, 2026 if ordered today

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Pulley Kit, Revolver Track, Serpentine, Aluminum, Chrome, Performance Ratio, Chevy, Big Block, Kit

Part Number: MCH-21265-06

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4340 Forged Pro Series Lightweight

Part Number: SCA-445440C-2

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Estimated Ship Date: Feb 13, 2026 if ordered today

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4340 Forged Superlight

Part Number: SCA-445440C-3

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Crankshaft, Forged 4340 Steel, Superlite, 4.25 in. Stroke, Chevy, 454, 2-Piece Seal, Will Internal Balance

Part Number: SCA-445425-3

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 13, 2026 if ordered today

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4340 Forged Superlight

Part Number: SCA-445425C-3

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Engine Crankshaft, Chevy 4-454-4375-6385-2 454 Big Block Forged 4340 Steel

Part Number: SCA-445426-2

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4340 Forged Pro Series Lightweight

Part Number: SCA-445426C-2

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4340 Forged Superlight

Part Number: SCA-445426C-3

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4340 Forged Pro Series Lightweight

Part Number: SCA-445430C-2

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4340 Forged Pro Series Lightweight

Part Number: SCA-445405C-2

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4340 Forged Pro Series Lightweight

Part Number: SCA-445415C-2

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