Summit Racing 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: Monday 3/30/2026 if shipped by air

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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 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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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 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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

Part Number: SUM-180366

4.36 out of 5 stars ( 14 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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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: Monday 3/30/2026 if shipped by air

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Crankshaft, 2-Piece Seal, Internal Balance, Cast Steel, 3.480 in. Stroke, Chevy, 350, Each

Part Number: SUM-180365

4.44 out of 5 stars ( 16 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Crankshaft, 2-Piece Seal, External Balance, Cast Steel, 3.750 in. Stroke, Chevy, 350 main, 383 stroker, Each

Part Number: SUM-180367

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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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: Monday 3/30/2026 if shipped by air

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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: Monday 3/30/2026 if shipped by air

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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 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Crankshaft, 2-Piece Seal, External Balance, Cast Steel, 4.000 in. Stroke, Chevy, 454, Each

Part Number: SUM-180370

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Crankshaft, 1-Piece Seal, External Balance, Cast Steel, 3.750 in. Stroke, Chevy, 350 main, 383 stroker, Each

Part Number: SUM-180368

2.17 out of 5 stars ( 6 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Gen. 1.5 LT1 Forged Steel Crankshaft, 3.750 stroke, 5.700 Rod, Lightened, bull-nose counterweights, Nitride Hardened, 1 piece rear main seal

Part Number: SUM-SBCLT37501P

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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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: Monday 3/30/2026 if shipped by air

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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 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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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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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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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: Monday 3/30/2026 if shipped by air

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SB Chevy Forged Steel crankshaft, 3.875 Stroke, Two Piece Rear Seal, Req. Narrowed Rod Bearings, Lightened, Nitride, Designed for 6.000 in. Rod

Part Number: SUM-SBC4003875

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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SBF 302 Windsor Cast crank, 3.400 in. stroke, 5.400 rod, Nitride Hardened, External 28 0z. Balance, Req. Narrowed Rod bearings

Part Number: SUM-SBF3023400C

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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

Part Number: SUM-SBC35040002P

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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BB Ford 460 Forged Steel crank, 4.150 Stroke, Designed for 6.700 in. Rod, Nitride Hardened, Straight Shot oiling, Req's narrowed Rod Bearings

Part Number: SUM-BBF460415067

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Summit 4340 Forged Crankshaft, SBF Windsor, 3.000 in Stroke, 28 oz. Balancer, Narrowed Rod Bearings, 1.375 Pilot Bearing, Designed for 5.090 in. Rod

Part Number: SUM-SBF3023000E

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Chevy Gen. 5 LT, 4340 Forged Steel Crankshaft, 4.000 stroke, 58X Reluctor, Gun-drilled and Lightened, Nitride Hardened, Narrowed Rod Bearings Req.

Part Number: SUM-180LT400058

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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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: Monday 3/30/2026 if shipped by air

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: Monday 3/30/2026 if shipped by air