1981 Crankshafts

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

Part Number: SCA-445425-2

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Crankshaft, 4340 Steel, 2.750 in. Diameter Main, 4.00 in. Stroke, Ford, 351W, Cleveland Mains, Each

Part Number: SCA-4351C50-2

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4340 Forged Pro Series Lightweight

Part Number: SCA-445425C-2

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SB Windsor 4340 Forged crank, 3.000 in. stroke, 5.400 in. Rod, Internally Balanced, Req's Narrowed Rod Bearings, one or two piece rear main seal

Part Number: SUM-SBF3023000I

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.000 in. Stroke, Chevy, 350, Each

Part Number: SUM-SBC35040002P

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Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.500 in. Stroke, 6.385 in. Rod, 2.200 Pin, Internal Balance, Chevy, Big Block, Each

Part Number: CPI-BBG42B-MG

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Crankshaft, 2-Piece Seal, External Balance, Cast Steel, 3.895 in. Stroke, AMC, 4.0L, Each

Part Number: CPI-S28000

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4340 Forged Superlight

Part Number: SCA-435087-3

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Estimated Ship Date: Apr 16, 2026 if ordered today

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Crankshaft, Standard Weight, Forged 4340 Steel, 3.625 in. Stroke, Internal Balance, Chevy, 350, Each

Part Number: SCA-435040

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Estimated Ship Date: Apr 20, 2026 if ordered today

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350 1-PC REAR SEAL SUPERLIGHT

Part Number: SCA-435010L-3

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Estimated Ship Date: Apr 16, 2026 if ordered today

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Crankshaft, Internal Balance, Forged 4340 Steel, 3.500 in. Stroke, Ford, 351W, Cleveland Mains, Each

Part Number: SCA-4351C16

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Estimated Ship Date: Apr 16, 2026 if ordered today

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ENGINE WOODRUFF KEYS 5PK

Part Number: SSY-50-1008

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Estimated Ship Date: Mar 4, 2026 if ordered today

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Crankshaft, Internal Balance, Forged 4340 Steel, 3.500 in. Stroke, Ford, 351W, Each

Part Number: ESP-435135006200

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Crankshaft, Internal Balance, Forged 4340 Steel, 3.500 in. Stroke, Ford, 351W, SVO, Each

Part Number: ESP-435235006200

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Estimated Ship Date: Apr 6, 2026 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: Apr 6, 2026 if ordered today

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350 1-PC REAR SEAL PROCOMP LIGHTWEIGHT

Part Number: SCA-435010L-2

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Estimated Ship Date: Apr 14, 2026 if ordered today

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4340 Forged Pro Series Lightweight

Part Number: SCA-445415C-2

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Estimated Ship Date: Apr 17, 2026 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: Apr 17, 2026 if ordered today

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4340 Forged Pro Series Big Block Post

Part Number: SCA-773502021

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Estimated Ship Date: Apr 17, 2026 if ordered today

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4340 Forged Pro Series Big Block Post

Part Number: SCA-773507620

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Estimated Ship Date: Apr 17, 2026 if ordered today

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4340 Forged Pro Series Big Block Post

Part Number: SCA-773507621

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Estimated Ship Date: Apr 17, 2026 if ordered today

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4340 Forged Pro Series Big Block Post

Part Number: SCA-773508620

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Estimated Ship Date: Apr 17, 2026 if ordered today

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Crankshaft, Cast Steel, 3.850 in. Stroke, External Balance, Ford, 351W, Cleveland Mains, Each

Part Number: SCA-9351C30

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 14, 2026 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: Apr 14, 2026 if ordered today

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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: Apr 17, 2026 if ordered today

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