CHEVROLET Crankshafts

4340 Forged Pro Series Big Block Post

Part Number: SCA-773502020

Not Yet Reviewed

Estimated Ship Date: Jan 29, 2026 if ordered today

• Free Shipping
• $100 Summit Bucks
• Special Order

4340 Forged Pro Series Big Block Post

Part Number: SCA-773505418

Not Yet Reviewed

Estimated Ship Date: Jan 29, 2026 if ordered today

• Free Shipping
• $100 Summit Bucks
• Special Order

4340 Forged Pro Series Big Block Post

Part Number: SCA-773505420

Not Yet Reviewed

Estimated Ship Date: Jan 29, 2026 if ordered today

• Free Shipping
• $100 Summit Bucks
• Special Order

4340 Forged Pro Series Big Block Post

Part Number: SCA-773505620

Not Yet Reviewed

Estimated Ship Date: Jan 29, 2026 if ordered today

• Free Shipping
• $100 Summit Bucks
• Special Order

Rotating Assembly, Forged Pistons, H-beam Connecting Rods, Internal Balance, 4.500 in. Stroke, 6.700 in. Rod Length, Chevy, 598, Kit

Part Number: MAN-28598

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, Forged 4340 Steel, 4.000 in. Stroke, Internal Balance, 8 Counterweight, 58X Reluctor, Chevy, LSA, Each

Part Number: CPI-5PO-31W-MG

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, Magnum, Forged 4340 Steel, 4.125 in. Stroke, 6.125 in. Rod, Internal Balance, Chevy, LS7, 58X Reluctor, Long Snout, Each

Part Number: CPI-AWU-31W-MG

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, Stock Eliminator, 2-Piece, 3.773 in. Stroke, Forged 4340 Steel, Internal Balance, Chevy, Big Block, Each

Part Number: CPI-BB1542BSE

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, Stock Eliminator, 2-Piece, 4.011 in. Stroke, Forged 4340 Steel, Internal Balance, Chevy, Big Block, Each

Part Number: CPI-BB1642B-SE

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.750 in. Stroke, 6.385 in. Rod, 2.100 Pin, Internal Balance, Chevy, Big Block, Each

Part Number: CPI-BBJ43B-MG

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, 2-piece seal, Internal balance, Forged 4340 Steel, 4.000 in. Stroke, Chevy, 454, 2.200 Pin, Each

Part Number: CPI-BBO42B-MG

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, Magnum, 1-Piece Seal, Forged 4340 Steel, 4.375 in. Stroke, 6.700 in Rod, 2.200 Pin, Internal Balance, Chevy, Big Block, GenV, GenVI, Each

Part Number: CPI-IBB42B-MG

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, Magnum, 1-Piece Seal, Forged 4340 Steel, 4.000 in. Stroke, 6.385 in Rod, 2.200 Pin, Internal Balance, Chevy, Big Block, GenV, GenVI, Each

Part Number: CPI-IBO-42B-MG

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 4.000 in. Stroke, 6.000 in. Rods, 2.000 Pin, 350 Main, Internal Balance, Chevy, Small Block, Each

Part Number: CPI-SAO14A-MG

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 4.000 in. Stroke, 6.000 in. Rods, 1.888 Pin, Internal Balance, Chevy, Small Block, Each

Part Number: CPI-SAO19A-MG

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.550 in. Stroke, 5.700 in. Rods, 2.100 Pin, 350 Main, Internal Balance, Chevy, Small Block, Each

Part Number: CPI-SAT11A-MG

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.550 in. Stroke, 5.700 in. Rods, 2.000 Pin, 350 Main, Internal Balance, Chevy, Small Block, Each

Part Number: CPI-SAT14A-MG

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 4.125 in. Stroke, 6.200 in. Rods, 2.100 Pin, Internal Balance, Chevy, Small Block, Each

Part Number: CPI-SAU11A-MG

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 4.125 in. Stroke, 6.125 in. Rods, 2.100 Pin, 400 Main, Internal Balance, Chevy, Small Block, Each

Part Number: CPI-SAU21AMG

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 4.125 in. Stroke, 6.000 in. Rods, 2.100 Pin, Internal Balance, Chevy, Small Block, Each

Part Number: CPI-SAU24A-MG

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.400 in. Stroke, 5.700 in. Rods, 2.100 Pin, 350 Main, Internal Balance, Chevy, Small Block, Each

Part Number: CPI-SAW11A-MG

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.400 in. Stroke, 5.700 in. Rods, 2.000 Pin, 350 Main, Internal Balance, Chevy, Small Block, Each

Part Number: CPI-SAW14A-MG

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.335 in. Stroke, 5.700 in. Rods, 2.000 Pin, 350 Main, Internal Balance, Chevy, Small Block, Each

Part Number: CPI-SAX14A-MG

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• Special Order

Crank, 2-piece Seal, Internal Balance, Forged 4340 Steel, 3.750 in. Stroke, 2.100 in. Pin, Chevy, 400, BB Post

Part Number: CPI-SMJ21A-MG

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• Special Order

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.875 in. Stroke, 6.000 in. Rods, 2.000 Pin, 400 Main, Big Block Post, Chevy, Small Block, Each

Part Number: CPI-SMM24A-MG

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• Special Order