CHEVROLET Chevy big block Mark IV Crankshafts

Crankshaft, Standard Weight, Forged 4340 Steel, 4.250 in. Stroke, Internal Balance, Chevy, 454, Each

Part Number: SCA-445425C

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Gen. 4 BB Chevy Forged Steel Crank, 4.250 stroke, Two Piece Rear Seal, Req's Narrowed Rod Bearings, Lightened holes, Nitride, 6.385 in. Rod

Part Number: SUM-BBC425063851

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Crankshaft, 2-piece Seal, Internal Balance, Forged 4340 Steel, 4.750 in. Stroke, 2.200 in. Pin, Chevy, 454

Part Number: CPI-BBS42B-MG

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.750 in. Stroke, Chevy, 7.4L, Each

Part Number: MAN-190280

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Sep 8, 2025 if ordered today

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Crankshaft, Standard Weight, Forged 4340 Steel, 3.766 in. Stroke, Internal Balance, Chevy, 454, Each

Part Number: SCA-445405C

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.375 in. Stroke, Chevy, 454, Each

Part Number: ESP-445443756385

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Estimated Ship Date: Sep 3, 2025 if ordered today

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

Part Number: BRO-S0017

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Estimated Ship Date: Aug 25, 2025 if ordered today

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Crankshaft Key, Long, Chevy, Chrysler, Dodge, Plymouth, Each

Part Number: MRG-983G

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.375 in. Stroke, 6.385 Rod, Chevy, 454, Each

Part Number: SCA-445426

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.00 in. Stroke, Chevy, 7.4L, Each

Part Number: MAN-190170

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Estimated Ship Date: Sep 12, 2025 if ordered today

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Crankshaft, Magnum, 2-piece Seal, Internal Balance, Forged 4340 Steel, 3.750 in. Stroke, Chevrolet, Each

Part Number: CPI-BBJ42B-MG

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4340 Forged Superlight

Part Number: SCA-445430C-3

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Estimated Ship Date: Oct 6, 2025 if ordered today

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4340 Forged Pro Series Lightweight

Part Number: SCA-445430C-2

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Crankshaft, 1-Piece Seal, Internal Balance, Cast Steel, 4.250 in. Stroke, Chevy, 454, Each

Part Number: SCA-945425L

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, 4340 Forged Steel, 4.50 in. Stroke, Standard Snout, Chevrolet, Big Block, Each

Part Number: HRS-45445006535

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Estimated Ship Date: Sep 22, 2025 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.750 in. Stroke, 6.700 Rod, Chevy, 454, Each

Part Number: SCA-445440

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Crankshaft, Standard Weight, Forged 4340 Steel, 4.000 in. Stroke, Internal Balance, Chevy, 454, Each

Part Number: SCA-445415C

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Estimated Ship Date: Oct 6, 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: Sep 3, 2025 if ordered today

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Crankshaft, Chevy big block, forged, 4.375 stroke, w/ center counterweights

Part Number: MAN-190320

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Estimated Ship Date: Sep 12, 2025 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.000 in. Stroke, 6.385 Rod, Chevy, 454, Each

Part Number: SCA-445415

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Estimated Ship Date: Oct 6, 2025 if ordered today

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CRANK-4340 FORGE 4.250 STROKE

Part Number: MAN-190290

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Estimated Ship Date: Sep 8, 2025 if ordered today

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Crankshaft, 2-piece Seal, Internal Balance, Forged 4340 Steel, 4.000 in. Stroke, 2.200 in. Pin, Chevy, 454

Part Number: CPI-BBO425-CS

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 27, 2025 if ordered today

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CRANK-4340 FORGE 4.375 STROKE

Part Number: MAN-190250

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Estimated Ship Date: Sep 12, 2025 if ordered today

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Crankshaft, 2-Piece Seal, External Balance, Forged 4340 Steel, 4.250 in. Stroke, 6.135 Rod, Chevy, 454, Each

Part Number: SCA-445420

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Crankshaft Keys, Short Type, 0 degree Offset, Steel, Natural, 3/16 in. Tall, AMC, Buick, Cadillac, Chevy, GMC, Jeep, Oldsmobile, Pontiac, Set of 100

Part Number: PIO-PK-9-100

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Estimated Ship Date: Aug 18, 2025 if ordered today

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