Crankshafts

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

Part Number: ESP-434742506560

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Estimated Ship Date: Dec 11, 2025 if ordered today

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Crankshaft CRANKSHAFT CRANKSHAFT

Part Number: HRI-4421

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Estimated Ship Date: Nov 21, 2025 if ordered today

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Crankshaft CRANKSHAFT CRANKSHAFT

Part Number: HRI-4423

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Estimated Ship Date: Nov 21, 2025 if ordered today

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CRANKSHAFT W/O RODS Polaris

Part Number: HRI-HR00025

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Estimated Ship Date: Nov 21, 2025 if ordered today

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CRANKSHAFT W/RODS Polaris

Part Number: HRI-HR00026

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Estimated Ship Date: Nov 21, 2025 if ordered today

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CRANKSHAFT W/O RODS Polaris

Part Number: HRI-HR00046

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Estimated Ship Date: Nov 21, 2025 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: Jan 15, 2026 if ordered today

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