Engines, Bare Blocks

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

Part Number: SUM-150201

5.0 out of 5 stars ( 3 )

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

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Engine Block, Bare, Cast Iron, SHP , 4.125 in. Bore, 4-Bolt Main Style, 2-Piece Rear Main Seal, Nodular Main Caps, Small Block, Chevy, Each

Part Number: DRT-31162211-B

Not Yet Reviewed

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

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Engine Block, Cast Iron, 400 Mains, 4.115 in. Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: DRT-31162211

4.25 out of 5 stars ( 4 )

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, 400MAIN, CAST MC

Part Number: MLL-BPP12110345

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, 400MAIN, BILLET MC, SC

Part Number: MLL-BPP12110348

Not Yet Reviewed

Estimated Ship Date: Dec 14, 2026 if ordered today

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