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, Cast Iron, 4-Bolt Mains, 4.000 in. Diameter Bore, 1-Piece Rear Main Seal, Ford, Small Block, Each

Part Number: FMS-M6010BOSS302

5.0 out of 5 stars ( 3 )

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

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Engine Block, Ford 302 Cast Iron , 4-Bolt Mains, 8.200 in. Deck, 4.000 in. Bore, 1-Piece Rear Main Seal, Small Block, Each

Part Number: SUM-150206

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

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Engine Blocks, Bare, 460 C.I.D. Siamese Bore, Cast Iron, Standard Deck Height, Ford 385 Series Main Journal Type, Ford, Each

Part Number: FMS-M6010A460XBB

5.0 out of 5 stars ( 1 )

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

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Engine Block, 350 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 350 Mains, 4.000 in. Unfinished Bore Diameter, 1-Piece Rear Main Seal

Part Number: SUM-150203

5.0 out of 5 stars ( 2 )

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, 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

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

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Engine Block, Summit, Big Block Chevrolet, Bare, Cast Iron, 4-bolt Main Bolt Style,10.200 in.Tall Deck, 4.500 in. Bore, Each

Part Number: SUM-150212

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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

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

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Engine Block, Cast Iron, 4-Bolt Mains, 4.250 in. Diameter Bore, 1-Piece Rear Main Seal, Chevy, Big Block, Each

Part Number: NAL-19170538

4.89 out of 5 stars ( 9 )

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

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Engine Block, Ford 302 Cast Iron , 4-Bolt Mains, 8.200 in. Deck, 4.125 in. Bore, 1-Piece Rear Main Seal, Small Block, Each

Part Number: SUM-150207

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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

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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

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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

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Estimated Ship Date: Dec 14, 2026 if ordered today

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Engine Block SBF 302, SIAM, 8.200 x 4.000, CAST MC

Part Number: MLL-BPP12110342

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Estimated Ship Date: Dec 14, 2026 if ordered today

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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, Ford 351W Cast Iron , 4-Bolt Mains, 9.500 deck, 4.125 in. Bore, 1-Piece Rear Main Seal, Small Block, Each

Part Number: SUM-150205

Not Yet Reviewed

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

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Engine Block, Cast Iron, 4-Bolt Mains, 4.360 in. Diameter Bore, 2-Piece Rear Main Seal, Siamese Bore, Ford, Big Block, Each

Part Number: FMS-M-6010-A460X

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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

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

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Engine Block, Cast Iron, 4-Bolt Mains, 4.494 in. Diameter Bore, 1-Piece Rear Main Seal, Chevy, Big Block, Each

Part Number: NAL-19212192

4.5 out of 5 stars ( 2 )

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

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Bare Blocks, Mopar Gen II Hemi Engine Block, Cast Iron, Aftermarket, Standard Deck, 4.245 in. Cylinder Bore, Chrysler, Dodge, Plymouth, 426 Hemi, Each

Part Number: CPI-P5160210AA

Not Yet Reviewed

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

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Engine Block, Bowtie, Cast Iron, 4.494 in. Bore, 9.800 in. Deck, Chevy, Big Block Gen V, Each

Part Number: NAL-19212191

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Feb 11, 2027 if ordered today

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Engine Block SBF 302, SIAM, 8.200 x 4.125, BILLET MC

Part Number: MLL-BPP12110339

Not Yet Reviewed

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

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