Engine Crankshafts

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

Crankshaft, Compstar 4340 Forged LS, 4.000 Stroke, Internal Balance, 8 counterweight, 6-bolt Flange, Standard Snout. 58-tooth GM Reluctor, Ea.

Part Number: CPI-APO31Q-CS58

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Crankshaft, Forged 4340 Steel, 4.000 in. Stroke, Internal Balance, 6 Bolt, 58-tooth GM Reluctor, Standard Snout, Chevy, Small Block, LS, Each

Part Number: CPI-APO-31V-AS

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Crank Installation Kit, Bolt Protectors, Assembly Lube, Spiral Cleaning Brush, Plastigage, Kit

Part Number: SES-3-60-11-101

4.6 out of 5 stars ( 10 )

Estimated Ship Date: Today

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, Forged 4340 Steel, 4.000 in. Stroke, Internal Balance, 8 Bolt, 58-tooth GM Reluctor, Wet Sump Post, Standard Snout, Chevy, Gen V, Each

Part Number: CPI-5TO-31V-AS

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Main Bolts, 4-Bolt Main, Cadillac, Chevy, GMC, Each

Part Number: NAL-11546565

Not Yet Reviewed

Estimated Ship Date: Today

Crankshaft, Forged 4340 Steel, 4.250 in. Stroke, Internal Balance, 6 Bolt, 58-tooth GM Reluctor, Standard Snout, Chevy, Small Block, LS, Each

Part Number: CPI-APP-31V-AS

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Crankshafts, Mitsu 4G63/4G64 7 Bolt 4340 Billet Super Lightweight Crankshaft. 100mm stroke, 29.5 lb. total wt., nitrided, diagonal oiling.

Part Number: MAN-190120BSLW

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

Crankshaft 4-LS7-4000-6125-58, Chevy LS7 Crankshaft 4340 Pro Street 6-Bolt 4.000 Stroke 6.125 Length 2.100 Jou

Part Number: SCA-4LS740065

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Crankshaft, LS1 S-Series, Pro Stock, 6-Bolt, 4340 Forged Steel, 1-Piece Rear Main, Internal, Narrow Bearing, 4/4.125 in. Stroke, 6.125 in. Rod, Each

Part Number: SCA-4LS136365

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Crankshaft 4-LS7-4000-6125-24, Chevy LS7 Crankshaft 4340 Pro Street 6-Bolt 4.000 Stroke 6.125 Length 2.100 Jou

Part Number: SCA-4LS740062

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Crankshaft 4-LS7-4125-6125-24, Chevy LS7 Crankshaft 4340 Pro Street 6-Bolt 4.125 Stroke 6.125 Length 2.100 Jou

Part Number: SCA-4LS741262

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Crankshaft 4-LS7-4125-6125-58, Chevy LS7 Crankshaft 4340 Pro Street 6-Bolt 4.125 Stroke 6.125 Length 2.100 Jou

Part Number: SCA-4LS741265

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Crankshaft, Forged Steel, Internal Engine Balance, Ford, 7.3L, Each

Part Number: FMS-M-6303-SD73

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

PILOT Adapter TO PUT GM CONVERTER TO FORD ENGINE 1.375 PILOT, SBF, BBF

Part Number: FTI-FCAF1

Not Yet Reviewed

Estimated Ship Date: Today

CRANKSHAFT

Part Number: HRI-HR00047

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Crankshaft Assembly, Forged 8620 Steel, Each

Part Number: HRI-4007

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Crankshaft Assembly, Forged 4140 Steel, Each

Part Number: HRI-4074

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Crankshaft Assembly, +4.000mm Stroke, Forged 4140 Steel, Each

Part Number: HRI-4143

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Crankshaft Assembly, Forged 8620 Steel, Each

Part Number: HRI-4053

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Crankshaft Assembly, Forged 4140 Steel, Each

Part Number: HRI-4070

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Crankshaft Assembly, Forged 4140 Steel, Each

Part Number: HRI-4083

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping