CHEVROLET Crankshafts

Crankshaft, 1-piece Seal, Internal Balance, Forged 4340 Steel, 4.250 in. Stroke, 2.200 in. Pin, Chevy, 454

Part Number: CPI-IBP425-CS

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 6, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, 2-piece Seal, Internal Balance, Forged 4340 Steel, 3.480 in. Stroke, 1.888 in. Pin, Chevy, 350

Part Number: CPI-SAF193-CC

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

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

Part Number: SCA-735056

Not Yet Reviewed

Estimated Ship Date: Jan 20, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

SB Chevy Forged Steel crankshaft, 3.750 Stroke, Two Piece Rear Seal, Req. Narrowed Rod Bearings, Lightened, Nitride, Designed for 6.000 in. Rod

Part Number: SUM-SBC4003750

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.375 in. Stroke, 6.385 Rod, Chevy, 454, Each

Part Number: SCA-445426

Not Yet Reviewed

Estimated Ship Date: Jan 20, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Crankshaft, 2-Piece Seal, Internal Balance, Forged, 4340 Steel, 3.875 in. Stroke, Chevy, 350, Each

Part Number: HRS-H353876012T

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

350 2-PC REAR SEAL, STD WEIGHT CHEVY

Part Number: SCA-435006

Not Yet Reviewed

Estimated Ship Date: Jan 14, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340, 3.750 in. Stroke, 2.45 Mains, Chevy, 5.7, 6.6L, Each

Part Number: MAN-190150

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 29, 2025 if ordered today

• Free Shipping
• Special Order

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 )

Estimated Ship Date: Today

• Free Shipping

Crankshaft, 2-piece seal, Internal balance, Forged 4340 Steel, 3.800 in. Stroke, Chevy, 350, 2.100 Pin, Each

Part Number: CPI-SAK113-CS

Not Yet Reviewed

• Free Shipping

Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 3.625 in. Stroke, Chevy, 350, Each

Part Number: ESP-435036255700

Not Yet Reviewed

Estimated Ship Date: Dec 17, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 3.750 in. Stroke, Chevy, 400, Each

Part Number: SCA-440050

Not Yet Reviewed

Estimated Ship Date: Jan 21, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, 2-piece Seal, Internal Balance, Forged 4340 Steel, 4.625 in. Stroke, 2.200 in. Pin, Chevrolet, Each

Part Number: CPI-BBR425-CS

Not Yet Reviewed

Estimated Ship Date: Jan 21, 2026 if ordered today

• Free Shipping
• Special Order

350 1-PC REAR SEAL STD WEIGHT

Part Number: SCA-435076L

Not Yet Reviewed

Estimated Ship Date: Jan 20, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Duramax Crank And Cam Key, Set

Part Number: SUM-161002

Not Yet Reviewed

Estimated Ship Date: Today

Crankshaft, Magnum, 1-Piece Seal, Forged 4340 Steel, 4.250 in. Stroke, 6.385 in Rod, 2.200 Pin, Internal Balance, Chevy, Big Block, GenV, GenVI, Each

Part Number: CPI-IBP42B-MG

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, 2-piece seal, Internal balance, Forged 4340 Steel, 4.000 in. Stroke, Chevy, 400, 2.100 Pin, Each

Part Number: CPI-SAO21A-MG

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

• Free Shipping
• Special Order

4340 Forged Superlight

Part Number: SCA-445430C-3

Not Yet Reviewed

Estimated Ship Date: Jan 20, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Crankshaft, 2-piece seal, Internal balance, Forged 4340 Steel, 3.480 in. Stroke, Chevy, 350, 2.100 Pin, Each

Part Number: CPI-SAF11A-MG

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

• Free Shipping
• Special Order

4340 Forged Pro Series Big Block Post

Part Number: SCA-773505621

Not Yet Reviewed

Estimated Ship Date: Jan 20, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Crankshaft Key, Chevy Vortec, LS1/LS2/LS6

Part Number: AAF-ALL87034

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

350 1-PC REAR SEAL SUPERLIGHT

Part Number: SCA-435010L-3

Not Yet Reviewed

Estimated Ship Date: Jan 20, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

4340 Forged Superlight

Part Number: SCA-435028-3

Not Yet Reviewed

Estimated Ship Date: Jan 20, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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