$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

It's the Season for Savings - Shop Holiday Deals Now!

Selected Filters


Loading...

Availability


1956 Engines & Components

Individual Parts

Results 76 - 100 of 218

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.625 in. Stroke, 5.750 in. Rods, 2.000 Pin, Internal Balance, Chevy, Small Block, Each

Part Number: CPI-SAH14A-MG

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.625 in. Stroke, 5.750 in. Rods, 1.888 Pin, Internal Balance, Chevy, Small Block, Each

Part Number: CPI-SAH19A-MG

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

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

Part Number: CPI-SAM24A-MG

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

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: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

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: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

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: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

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: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

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: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 4.000 in. Stroke, 6.000 in. Rods, 1.888 Pin, 350 Main, Big Block Post, Chevy, Small Block, Each

Part Number: CPI-SMO19A-MG

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 4.000 in. Stroke, 6.000 in. Rods, 2.000 Pin, 400 Main, Big Block Post, Chevy, Small Block, Each

Part Number: CPI-SMO24A-MG

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.800 in. Stroke, 5.850 in. Rods, 2.100 Pin, Internal Balance, Chevy, Small Block, Each

Part Number: CPI-SAK11A-MG

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.800 in. Stroke, 5.850 in. Rods, 2.000 Pin, Internal Balance, Chevy, Small Block, Each

Part Number: CPI-SAK14A-MG

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.800 in. Stroke, 5.850 in. Rods, 2.000 Pin, 400 Main, Internal Balance, Chevy, Small Block, Each

Part Number: CPI-SAK24A-MG

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.562 in. Stroke, 5.850 in. Rods, 1.888 Pin, Internal Balance, Chevy, Small Block, Each

Part Number: CPI-SA619A-MG

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

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: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

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: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

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: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

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: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

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: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

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: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.000 in. Stroke, 5.700 in. Rods, 2.000 Pin, Internal Balance, Chevy, Small Block, Each

Part Number: CPI-SAD14A-MG

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.480 in. Stroke, 5.700 in. Rods, 1.888 Pin, Internal Balance, Chevy, Small Block, Each

Part Number: CPI-SAF19A-MG

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 16, 2026 if ordered today

Pulley Kit, Serpentine, Aluminum, Black Onyx Main X Bracket, Clear Powdercoated Pulleys, Power Steering, Chevy, Small Block, Ultra Kit

Part Number: MCH-20260-07

Not Yet Reviewed

Estimated Ship Date: Dec 12, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 12, 2025 if ordered today

Pulley Kit,V-belt,Chevy Small Block,Aluminum,AC,Power Steering w/Aluminum Reservoir,170amp,Gloss black anodize

Part Number: EMS-MS118-30BBA

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Dec 8, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 8, 2025 if ordered today

Pulley Kit, V-Belt, Chevrolet Small Block, Aluminum, Water Pump, A/C, Power Steering, Billet Reservoir, 170 Amp, Gloss Black, Kit

Part Number: EMS-MS118-30BBK

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 8, 2025 if ordered today

Modal Header

Call To Order

This is a custom order part. You can order this part by Contacting Us.