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Engines, Bare Blocks

Individual Parts

Results 1 - 25 of 214

Engine Block, Pro LS, Bare, Cast Iron, 6-bolt Main Bolt Style, 6 Head bolt Pattern, 9.240 in. Std. Deck 4.125 in. Bore, GenIII/IV LS Chevrolet, Each

Part Number: SUM-150216

5.0 out of 5 stars ( 1 )

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

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

Engine Block, Bare, Aluminum, 94mm Bore, Finished-Honed Bores, Hi-Flow Oil Squirters Included, Cross-Bolted Mains, Ford, Mustang, 5.2L Gen 3, Each

Part Number: FMS-M-6010-M52B

5.0 out of 5 stars ( 1 )

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

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

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

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

Engine Block, Pro LS, Bare, Cast Iron, 6-bolt Main Bolt Style, 9.240 in. Std Deck, 4 Head Bolt, 4.065 in. Bore, GenIII/IV LS Chevrolet, 6.0/6.2, Each

Part Number: SUM-150215

Not Yet Reviewed

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

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

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

Not Yet Reviewed

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

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

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

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

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

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

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

Engine Block, Bare, Cast Iron, SHP, 4.125 in. Bore, 9.025 in. Deck Height, 4-Bolt Main Style, 2-Piece Rear Main Seal, Small Block, Chevy, Each

Part Number: DRT-31161211-B

Not Yet Reviewed

Estimated Ship Date: Feb 5, 2027 if ordered today

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Estimated Ship Date: Feb 5, 2027 if ordered today

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

Not Yet Reviewed

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

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

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

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

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

Not Yet Reviewed

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

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

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

Part Number: DRT-31375235

5.0 out of 5 stars ( 3 )

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Engine Block, LSX Bowtie, Bare, Cast Iron, 6-bolt Main Bolt Style, 9.260 in. Standard Deck, Semi Finished, Chevrolet, Each

Part Number: NAL-19417351

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 11, 2027 if ordered today

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Estimated Ship Date: Feb 11, 2027 if ordered today

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

Engine Block, Bare, Aluminum, 93mm Bore, Finished-Honed, Oil Squirters Included, Cross-Bolted Mains, Liner Coating, Ford, Mustang, 5.0L Gen 3, Each

Part Number: FMS-M6010-M504VC

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2026 if ordered today

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Estimated Ship Date: Dec 31, 2026 if ordered today

Engine Block, Cast Iron, 4-Bolt Mains, 4.245 in. Diameter Bore, 9.800 in. Deck, Nodular Iron Main Caps, 1-Piece Rear Main Seal, Chevy, Big Block, Each

Part Number: WRL-091103

Not Yet Reviewed

Estimated Ship Date: Nov 23, 2026 if ordered today

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Estimated Ship Date: Nov 23, 2026 if ordered today

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

Engine Block BBC, 2PC, SIAM, 9.800 x 4.500, CAST MC

Part Number: MLL-BPP12110324

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2026 if ordered today

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Estimated Ship Date: Dec 15, 2026 if ordered today

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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Estimated Ship Date: Dec 14, 2026 if ordered today