Engines & Components

4.250" stroke, internal balance, forged 4340 steel, Chevrolet Gen III "LS"

Part Number: ESP-434742506560

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Estimated Ship Date: Dec 5, 2025 if ordered today

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CRANKSHAFT

Part Number: ESP-4349400060LA

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Estimated Ship Date: Dec 5, 2025 if ordered today

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Engine Crankshaft, Forged 4340 Steel Crankshhaft

Part Number: ESP-4350375057BN

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Estimated Ship Date: Dec 5, 2025 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: Dec 5, 2025 if ordered today

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CRANK

Part Number: ESP-450246256600

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Estimated Ship Date: Dec 5, 2025 if ordered today

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SERPENTINE PULLEY KIT

Part Number: MCH-20585-08

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Estimated Ship Date: Dec 15, 2025 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: Dec 4, 2025 if ordered today

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Crankshaft, 1-Piece Seal, Internal Balance, Forged 4340 Steel, 3.875 in. Stroke, Chevy, 5.7L, Each

Part Number: ESP-435338756000

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Estimated Ship Date: Dec 4, 2025 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 3.580 in. Stroke, Chrysler, 360, Each

Part Number: ESP-436035806123

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Estimated Ship Date: Dec 4, 2025 if ordered today

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NON-CENTER CRANKSHAFT

Part Number: SCA-445437666135

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Estimated Ship Date: Dec 2, 2025 if ordered today

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SPORT TRACK KIT

Part Number: MCH-23071-08

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Pulleys, Sport Track, Serpentine, Performance Ratio, Billet Aluminum, Silver Brackets, No P/S, with A/C, Chevy, Small Block, Long, Kit

Part Number: MCH-21685-09

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Crankshaft, Chev LS, 4.125" Stroke, 58T

Part Number: HRS-S0028

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Estimated Ship Date: Nov 17, 2025 if ordered today

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PULLEY SET

Part Number: MCH-BA23040-08

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Estimated Ship Date: Nov 7, 2025 if ordered today

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CRANKSHAFT

Part Number: NAL-12641692

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Estimated Ship Date: Feb 12, 2026 if ordered today

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3.500" stroke, internal balance, forged 4340 steel, Ford 351 Cleveland

Part Number: ESP-435635006000

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Estimated Ship Date: Nov 3, 2025 if ordered today

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4.000" stroke, internal balance, forged 4340 steel, Chevrolet big block, center counterweighted

Part Number: ESP-445440016135

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Estimated Ship Date: Nov 3, 2025 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.125 in. Stroke, Chevy, 400, Each

Part Number: ESP-440041256000

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Estimated Ship Date: Nov 3, 2025 if ordered today

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CHEVY LS2/LS7 4340 CRANK

Part Number: ESP-442742506560

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forged crankshaft

Part Number: ESP-442743756460

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Estimated Ship Date: Nov 3, 2025 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 3.750 in. Stroke, Chevy, 350, Each

Part Number: ESP-4349375057LA

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4340 CRANK CHEV 350 2PC IMCA LEGAL

Part Number: ESP-4350348057CM

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Estimated Ship Date: Nov 3, 2025 if ordered today

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Crankshaft, Internal Balance, Forged 4340 Steel, 3.750 in. Stroke, Ford, 4.6L, Each

Part Number: ESP-428137505850

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Estimated Ship Date: Nov 3, 2025 if ordered today

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CHEVY LS1 4340 CRANK

Part Number: ESP-434642506560

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Estimated Ship Date: Nov 3, 2025 if ordered today

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CRANKSHAFT

Part Number: ESP-434738006100

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Estimated Ship Date: Nov 3, 2025 if ordered today

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