Engines & Components

Chevy LS 4340 Forged Steel Crankshaft, 4.000 stroke, 24X Reluctor, Lightened, Nitride Hardened, Narrowed Rod Bearings Req.

Part Number: SUM-180LS400024

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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SB Mopar 340 Forged Steel Crank, 4.000 stroke, 6.123 in. Rod, May Req. Heavy Metal, Lightning Holes on Rod Journals, Narrowed Rod Bearings Req.

Part Number: SUM-MOP3404000

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Gen. 4 BB Chevy Forged Steel Crank, 4.250 stroke, Two Piece Rear Seal, Req's Narrowed Rod Bearings, Lightened holes, Nitride, 6.385 in. Rod

Part Number: SUM-BBC425063851

5.0 out of 5 stars ( 1 )

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SB Chevy Forged Steel crankshaft, 4.000 Stroke, 400 Mains, 2 Piece Rear Seal, Req. Narrowed Rod Bearings, Lightened, Nitride, 6.000 in. Rod

Part Number: SUM-SBC4004000

5.0 out of 5 stars ( 1 )

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

Part Number: HRS-H353756012T

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Estimated Ship Date: Oct 10, 2025 if ordered today

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Cylinder Head, 315cc BBC, Aluminum, 120cc Chamber, 315cc Runner, 2.250 in. Intake Valve, 1.880 in. Exhaust Valve, 0.675 in. Max Lift, Chevy, Each

Part Number: HPE-HPBBC315

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Estimated Ship Date: Nov 14, 2025 if ordered today

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Crankshaft, Chev SB, 350 Main, 1pc Seal

Part Number: HRS-H353485711T

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Estimated Ship Date: Oct 10, 2025 if ordered today

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Crankshaft, Chev SB, 454 Main, 4.750"

Part Number: HRS-H454756722T

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Estimated Ship Date: Oct 10, 2025 if ordered today

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Crankshaft, Forged 4340 Steel, 4.250 in. Stroke, Chevy, 454, Internal Balance, 2-Piece Seal, Each

Part Number: HRS-H454256322T

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Estimated Ship Date: Oct 10, 2025 if ordered today

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Crankshaft SB Chev 350 Main

Part Number: HRS-H353485712T

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Crankshaft, 2-Piece Seal, Internal Balance, Forged, 4340 Steel, 4.000 in. Stroke, Chevy, 350, Each

Part Number: HRS-H354006012T

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Estimated Ship Date: Oct 10, 2025 if ordered today

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Crankshaft, Forged 4340 Steel, 4.250 in. Stroke, Chevy, 454, Internal/External Balance, 1-Piece Seal, Each

Part Number: HRS-H454256321T

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Estimated Ship Date: Oct 10, 2025 if ordered today

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Crankshaft, Chev LS, 4.000" Stroke, 24T

Part Number: HRS-S0025

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Estimated Ship Date: Oct 10, 2025 if ordered today

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Crankshaft, Chev LS, 4.125" Stroke, 24T

Part Number: HRS-S0027

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Estimated Ship Date: Oct 10, 2025 if ordered today

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Crankshaft, Chev LS, 4.000" Stroke, 58T

Part Number: HRS-S0026

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Estimated Ship Date: Oct 10, 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: Oct 10, 2025 if ordered today

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Crankshaft, Chev LS, 3.622" Stroke, 24T

Part Number: HRS-S0023

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Estimated Ship Date: Oct 10, 2025 if ordered today

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Crankshaft, Chev LS, 3.622" Stroke, 58T

Part Number: HRS-S0024

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Estimated Ship Date: Oct 10, 2025 if ordered today

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