Engine Crankshafts

Crankshaft, Cast Steel, 3.750 in. Stroke, Chevy, 400, OEM Balance, 2-Piece Seal, Each

Part Number: SUM-180369

4.0 out of 5 stars ( 5 )

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Woodruff Key for Summit Pro LS Crankshaft, Rearward Position, Long Key, zero offset, 1.484 in. Length, 3/16 wide, 1 ea.

Part Number: SUM-161001

4.67 out of 5 stars ( 3 )

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Pro LS 4340 Forged Steel Crank, 3.622 Stroke, 24X Reluctor, Lightened Rod Journals and Gun-drilled Mains, Std. 6-bolt Flange, Internal balanced, LS1

Part Number: SUM-180LS362224X

3.67 out of 5 stars ( 3 )

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Crankshaft, 1-Piece Seal, Internal Balance, Cast Steel, 3.480 in. Stroke, Chevy, 350, Each

Part Number: SUM-180366

4.25 out of 5 stars ( 12 )

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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, Cast Steel, Standard Snout, Chevy, Small Block, Each

Part Number: ESP-103503480

4.83 out of 5 stars ( 36 )

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Crankshaft, 1 or 2-Piece Seal, 28 oz. External Balance, Cast Steel, 3.85 in. Stroke, Ford, 351W, Each

Part Number: ESP-103513850

5.0 out of 5 stars ( 7 )

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Pro LS 4340 Forged Steel Crank, 4.000 Stroke, 58X Reluctor, Lightened Rod Journals and Gun-drilled Mains, Std. 6-bolt Flange, Internal balanced, LS3

Part Number: SUM-180LS400058X

4.83 out of 5 stars ( 6 )

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BTR GEN III HEMI CRANKSHAFT 4.050" STROKE NO RELUCTOR

Part Number: BTC-S0433

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Estimated Ship Date: Oct 20, 2025 if ordered today

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Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.875 in. Stroke, 6.000 in. Rods, 2.000 Pin, Big Block Post, Chevy, Small Block, Each

Part Number: CPI-SMM14A-MG

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 4.000 in. Stroke, 6.000 in. Rods, 2.100 Pin, 350 Main, Big Block Post, Chevy, Small Block, Each

Part Number: CPI-SMO11A-MG

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 4.000 in. Stroke, 6.000 in. Rods, 2.000 Pin, 350 Main, Big Block Post, Chevy, Small Block, Each

Part Number: CPI-SMO14A-MG

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Estimated Ship Date: Dec 22, 2025 if ordered today

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CRANKSHAFT

Part Number: CPI-KV3291H-CS

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Estimated Ship Date: Dec 22, 2025 if ordered today

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FORD RS CRANK MODIFIED - FULL COUNTERWEIGHT

Part Number: CPI-QH47KWO-F2

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Crankshaft, Compstar, Sport Series, Knife Edged, Billet 4340 Steel, 3.465 in. / 88 mm Stroke, Mitsubishi, 4G63, 7 Bolt, Each

Part Number: CPI-S23001

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Crankshaft, Compstar, Sport Series, Billet 4340 Steel, 3.858 in. / 98 mm Stroke, Mitsubishi, 4B11, Each

Part Number: CPI-S23006

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Crankshaft, Compstar, Sport Series, Knife Edged, Billet 4340 Steel, 3.937 in. / 102 mm Stroke, Mitsubishi, 4G63, 7 Bolt, Each

Part Number: CPI-S23009

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Crankshaft, Compstar, Sport Series, Full Counterweight, Billet 4340 Steel, 3.465 in. / 88 mm Stroke, Mitsubishi, 4G63, 6 Bolt, Each

Part Number: CPI-S23013

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Crankshaft, Compstar, Sport Series, Full Counterweight, Billet 4340 Steel, 3.937 in. / 100 mm Stroke, Mitsubishi, 4G63, 6 Bolt, Each

Part Number: CPI-S23015

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Crankshaft, Compstar, Sport Series, Billet 4340 Steel, 3.413 in. / 86.7 mm Stroke, Ford, EcoBoost, 1.6L, Each

Part Number: CPI-S24002

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Estimated Ship Date: Dec 22, 2025 if ordered today

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COMPSTAR FORD 3.5 ECOBOOST 91.44mm STROKE

Part Number: CPI-S24007

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Crankshaft, Compstar, Sport Series, Billet 4340 Steel, 3.268 in. / 83 mm Stroke, Internal Balance, Nissan, VG30DETT, Each

Part Number: CPI-S25002

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Crankshaft, Compstar, Sport Series, Billet 4340 Steel, 3.059 in. / 77.7 mm Stroke, Internal Balance, Nissan, RB26DETT, Each

Part Number: CPI-S25004

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Crankshaft, Compstar, Sport Series, Billet 4340 Steel, 2.901 in. / 73.7 mm Stroke, Internal Balance, Nissan, RB26DETT, Each

Part Number: CPI-S25005

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Crankshaft, Compstar, Sport Series, Billet 4340 Steel, 3.110 in. / 79 mm Stroke, Internal Balance, Subaru, EJ20, Each

Part Number: CPI-S26002

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Estimated Ship Date: Dec 22, 2025 if ordered today

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