1984 Crankshafts

4340 Forged Pro Series Lightweight

Part Number: SCA-445425C-2

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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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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, 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, Internal Balance, Forged 4340 Steel, 4.000 in. Stroke, Chevy, 350, Each

Part Number: SUM-SBC35040002P

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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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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: Apr 24, 2026 if ordered today

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4340 Forged Pro Series Lightweight

Part Number: SCA-445405C-2

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Estimated Ship Date: Apr 24, 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 24, 2026 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 3.500 in. Stroke, Chevy, Small Block, Each

Part Number: SCA-435030LW

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Estimated Ship Date: Apr 28, 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 22, 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 22, 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 23, 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 23, 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

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Estimated Ship Date: Apr 23, 2026 if ordered today

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4340 Forged Superlight

Part Number: SCA-445425C-3

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Estimated Ship Date: Apr 23, 2026 if ordered today

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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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Estimated Ship Date: Apr 23, 2026 if ordered today

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4340 Forged Pro Series Lightweight

Part Number: SCA-445426C-2

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Estimated Ship Date: Apr 23, 2026 if ordered today

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4340 Forged Superlight

Part Number: SCA-445426C-3

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Estimated Ship Date: Apr 23, 2026 if ordered today

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Crankshaft 4-454-4375-6635, Chevy Crankshaft Forged 4340 Strd Wgt 454 2-Piece Rear 4.375 Stroke 6.535 Length 2

Part Number: SCA-445428

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Estimated Ship Date: Apr 23, 2026 if ordered today

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Crankshaft, Standard Weight, Forged 4340 Steel, 4.500 in. Stroke, Internal Balance, Chevy, 454, Each

Part Number: SCA-445430C

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Estimated Ship Date: Apr 23, 2026 if ordered today

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4340 Forged Pro Series Lightweight

Part Number: SCA-445430C-2

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Estimated Ship Date: Apr 23, 2026 if ordered today

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4340 Forged Superlight

Part Number: SCA-445430C-3

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Estimated Ship Date: Apr 23, 2026 if ordered today

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Crankshaft, 1-Piece Seal, Internal Balance, No Center Counterweights, Chevy, Big Block, Each

Part Number: SCA-445430L

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Estimated Ship Date: Apr 23, 2026 if ordered today

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454 2-PC REAR SEAL PROCOMP LIGHTWEIGHT

Part Number: SCA-445440-2

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Estimated Ship Date: Apr 23, 2026 if ordered today

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