Engine Crankshafts

4340 Forged Pro Series Big Block Post

Part Number: SCA-774005420

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Estimated Ship Date: Nov 28, 2025 if ordered today

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4340 Forged Pro Series Big Block Post

Part Number: SCA-774007620

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4340 Forged Pro Series Big Block Post

Part Number: SCA-774007621

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Estimated Ship Date: Nov 28, 2025 if ordered today

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4340 Forged Pro Series Big Block Post

Part Number: SCA-774008620

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4340 Forged Pro Series Big Block Post

Part Number: SCA-774008621

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PRO SERIES CRANKSHAFT

Part Number: SCA-4289022-3

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Estimated Ship Date: Nov 28, 2025 if ordered today

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Crankshafts, Pro Series, Forged 4340 Steel, Lightweight, 3.400 in. Stroke, Standard Snout, Use 28 oz. Balancer, Ford Small Block, 302, Each

Part Number: SCA-43023-2

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Series 9000 Cast Crankshafts

Part Number: SCA-922142

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Estimated Ship Date: Nov 28, 2025 if ordered today

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Crankshaft, LS1 S-Series, Pro Stock, 6-Bolt, 4340 Forged Steel, 1-Piece Rear Main, Internal, Narrow Bearing, 4/4.125 in. Stroke, 6.125 in. Rod, Each

Part Number: SCA-4LS136365

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Estimated Ship Date: Nov 28, 2025 if ordered today

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3.622" stroke, internal balance, billet 4340 steel, Honda/Acura K20a2, B-series rod journals

Part Number: ESP-3K2036221772

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Estimated Ship Date: Oct 24, 2025 if ordered today

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4.173" (106mm) stroke, internal balance, billet 4340 steel, Honda/ Acura K-series

Part Number: ESP-3K2041731878

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Estimated Ship Date: Oct 24, 2025 if ordered today

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Crankshaft, Forged 4340 Steel, 4.000 in. Stroke, Internal Balance, 6 Bolt, 58-tooth GM Reluctor, Standard Snout, Chevy, Small Block, LS, Each

Part Number: CPI-APO-31V-AS

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Crankshaft, Forged 4340 Steel, 4.125 in. Stroke, Internal Balance, 6 Bolt, 58-tooth GM Reluctor, Standard Snout, Chevy, Small Block, LS, Each

Part Number: CPI-APU-31V-AS

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Crankshaft, Forged 4340 Steel, 3.625 in. Stroke, Internal Balance, 6 Bolt, 58-tooth GM Reluctor, Standard Snout, Chevy, Small Block, LS, Each

Part Number: CPI-APH-31V-AS

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Crankshaft, Forged 4340 Steel, 4.000 in. Stroke, Internal Balance, 8 Bolt, 58-tooth GM Reluctor, Dry Sump Post, Standard Snout, Chevy, Gen V, Each

Part Number: CPI-5UO-31V-AS

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Crankshaft, Forged 4340 Steel, 4.000 in. Stroke, Internal Balance, 8 Bolt, 58-tooth GM Reluctor, Wet Sump Post, Standard Snout, Chevy, Gen V, Each

Part Number: CPI-5TO-31V-AS

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Crankshaft, Forged 4340 Steel, 4.250 in. Stroke, Internal Balance, 6 Bolt, 58-tooth GM Reluctor, Standard Snout, Chevy, Small Block, LS, Each

Part Number: CPI-APP-31V-AS

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ENGINE CRANKSHAFT, L81-99 BIG TWIN, CRANK PIN +.002

Part Number: SSY-34-2105

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Estimated Ship Date: Oct 15, 2025 if ordered today

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Crankshaft Keys, Short Type, 0 degree Offset, Steel, Natural, 0.750 in. Length, Buick, Chevy, Pair

Part Number: PIO-839009

4.92 out of 5 stars ( 13 )

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Woodruff Key, Long, .188 in. x 1.375 in., Chevy, Chrysler, Pontiac, Set of 2

Part Number: PIO-839010

3.82 out of 5 stars ( 11 )

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Crankshaft Key, Short, Chevy, Each 0.750" x 0.188"

Part Number: MRG-984G

5.0 out of 5 stars ( 2 )

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Crankshaft Key, Short, 4 Degree Offset, Chevy, Ford, Pontiac, Chrysler, Each

Part Number: MRG-988G

4.6 out of 5 stars ( 5 )

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

Part Number: MRG-983G

1.0 out of 5 stars ( 2 )

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Crankshaft, 1 or 2-Piece Seal, Internal Balance, Cast Steel, 3.85 in. Stroke, Ford, 460, Each

Part Number: ESP-104603850

3.6 out of 5 stars ( 5 )

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Crankshaft, 2-Piece Seal, External Balance, Cast Steel, 3.850 in. Stroke, Ford, 460, Each

Part Number: SCA-946010

5.0 out of 5 stars ( 2 )

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