Engines, Bare Blocks

Engine Block, 350 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 350 Mains, 4.000 in. Unfinished Bore Diameter, 2-Piece Rear Main Seal

Part Number: SUM-150200

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Engine Block, 400 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 350 Mains, 4.125 in. Unfinished Bore Diameter, 2-Piece Rear Main Seal

Part Number: SUM-150202

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Engine Block, Cast Iron, 4-Bolt Mains, 4 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: DRT-31161111

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Engine Block, 400 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 350 Mains, 4.125 in. Unfinished Bore Diameter, 1-Piece Rear Main Seal

Part Number: SUM-150204

Not Yet Reviewed

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Engine Block SBC, 2PC, SIAM, 9.025 x 4.125, 350MAIN, CAST MC

Part Number: MLL-BPP12110343

Not Yet Reviewed

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Engine Block SBC, 2PC, SIAM, 9.025 x 4.000, 350MAIN, CAST MC

Part Number: MLL-BPP12110344

Not Yet Reviewed

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Engine Block SBC, 2PC, SIAM, 9.025 x 4.125, 350MAIN, BILLET MC, SC

Part Number: MLL-BPP12110346

Not Yet Reviewed

Estimated Ship Date: Dec 14, 2026 if ordered today

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Engine Block SBC, 2PC, SIAM, 9.025 x 4.000, 350MAIN, BILLET MC

Part Number: MLL-BPP12110347

Not Yet Reviewed

Estimated Ship Date: Dec 14, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order