Engine Crankshafts

Crankshaft, Pro LS, 4340 Forged Steel, 4 in. Stroke, 24X Reluctor, Lightened Rod Journals, Gun-drilled Mains, Internal balanced, LS1, Each

Part Number: SUM-180LS400024X

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

• Free Shipping

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 )

Estimated Ship Date: Today

• Free Shipping

Pro LS 4340 Forged Steel Crank, 3.622 Stroke, 58X Reluctor, Lightened Rod Journals and Gun-drilled Mains, Std. 6-bolt Flange, Internal balanced, LS3

Part Number: SUM-180LS362258X

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Summit Chevy LS 4340 Forged Steel Crankshaft, 4.000 stroke, 58X Reluctor, Gun-drilled and Lightened, Nitride Hardened, Narrowed Rod Bearings Req.

Part Number: SUM-180LS400058

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Sensor Plug LS Crank Position

Part Number: ICB-PLG-LS-CKP01

Not Yet Reviewed

Estimated Ship Date: Feb 19, 2026 if ordered today

• Special Order

Summit Chevy LS 4340 Forged Steel Crankshaft, 3.622 stroke, 58X Reluctor, Gun-drilled and Lightened, Nitride Hardened, Narrowed Rod Bearings Req.

Part Number: SUM-180LS362258

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Crankshafts, Magnum, 4340 Steel, 4.00 in. Stroke, Internal Balance, 58X Reluctor, 1-Piece Main, 2.10 in. Diameter Journal, Lightened, Chevy, LS, Each

Part Number: CPI-APO31V-MG

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Crankshaft, Remanufactured, Nodular Iron, 3.622 in. Stroke, 0.010 Undersize Bearing Required, 24-Tooth Reluctor, Chevy, LS, Each

Part Number: SUM-180362

3.42 out of 5 stars ( 12 )

Estimated Ship Date: Today

• Free Shipping

Summit Chevy LS 4340 Forged Steel Crankshaft, 3.622 stroke, 24X Reluctor, Gun-drilled and Lightened, Nitride Hardened, Narrowed Rod Bearings Req.

Part Number: SUM-180LS362224

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

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: Today

• Free Shipping

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

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Crankshaft, One-piece Seal, Internal Balance, Forged 4140 Steel, 3.622 in. Stroke, 6.100 in. Rod Length, Chevrolet, Small Block LS, Each

Part Number: ESP-534636226100

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

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

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

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 )

Estimated Ship Date: Today

Woodruff Key for Summit Pro LS Crankshaft, Forward Position, Short Key. zero offset, .728 in. length, .300 tall, 1 ea.

Part Number: SUM-161000

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

Crankshaft, 1-Piece Seal, Internal Balance, Forged 4340 Steel, 3.622 in. Stroke, Chevy, LS, Each

Part Number: ESP-434736226100

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Crankshaft, 1-Piece Seal, Internal Balance, Forged 4140 Steel, 4.000 in. Stroke, 58-Tooth Reluctor, Chevy, LS, Each

Part Number: ESP-534740006100

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

LS Crankshaft Woodruff Keyway, LS1, LS3, Timing Chain, Oil Pump Gear Crank Pin, Each

Part Number: ICB-551721

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Crankshaft Adapter Sleeves, Adapts LS Gen III / IV for use with early GM non LS transmission, Steel, Black, Each

Part Number: PQX-1803533

Not Yet Reviewed

Estimated Ship Date: Today

Crankshafts, Chevy LS 4340 Forged Lightweight Crankshaft. 58 tooth reluctor wheel, 4.000" stroke, 50-52 lb. total weight. Not balanced

Part Number: MAN-190058NB

Not Yet Reviewed

Estimated Ship Date: Mar 27, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

4340 FORGED CRANK 3.622" STROKE LS WITH 24 TOOTH RELUCTOR WHEEL

Part Number: MAN-193924

Not Yet Reviewed

Estimated Ship Date: Mar 27, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

BTR CRANKSHAFT KEY FOR BTR LS CRANKSHAFTS

Part Number: BTC-BTR-CK2720

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

• Drop Ship
• Special Order

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

Part Number: ESP-434742506560

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Crankshaft, Chevy LS, forged, 4.100 stroke, lightweight, 58 tooth reluctor wheel, long snout

Part Number: MAN-192758

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order