Engines, Bare Blocks - 4.000 in. Cylinder Bore Diameter - Free Shipping on Orders Over $109 at Summit Racing

Dart SHP Special High Performance Small Block Chevy Cast Iron Bare Blocks 31161111

Dart SHP Special High Performance Small Block Chevy Cast Iron Bare Blocks 31161111

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

Part Number: DRT-31161111

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 7/14/2025

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Estimated Ship Date: Monday 7/14/2025

Summit Racing™ SPC Engine Blocks SUM-150200

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 ( 6 )

Estimated Ship Date: Monday 7/14/2025

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Estimated Ship Date: Monday 7/14/2025

Dart SHP Special High Performance Small Block Ford Cast Iron Bare Blocks 31374175

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

Part Number: DRT-31374175

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 7/14/2025

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Estimated Ship Date: Monday 7/14/2025

Summit Racing™ SPC Engine Blocks SUM-150203

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 7/14/2025

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Estimated Ship Date: Monday 7/14/2025

Ford Performance Parts Boss 302 Engine Blocks M-6010-BOSS302

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 7/14/2025

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Estimated Ship Date: Monday 7/14/2025

Dart SHP Special High Performance Small Block Ford Cast Iron Bare Blocks 31375135

Engine Block, Cast Iron , 4-Bolt Mains, 4.000 in. Bore, 1-Piece Rear Main Seal, Ford 351, Small Block, Each

Part Number: DRT-31375135

Not Yet Reviewed

Estimated Ship Date: Aug 15, 2025 if ordered today

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Estimated Ship Date: Aug 15, 2025 if ordered today

Summit Racing™ SPC Engine Blocks SUM-150206

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

Part Number: SUM-150206

Not Yet Reviewed

Estimated Ship Date: Monday 7/14/2025

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Estimated Ship Date: Monday 7/14/2025

Dart SHP Special High Performance Small Block Chevy Cast Iron Bare Blocks 31161111L

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

Part Number: DRT-31161111L

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Aug 29, 2025 if ordered today

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Estimated Ship Date: Aug 29, 2025 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ SPC Engine Blocks SUM-150203

5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 7/14/2025

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ATK High Performance GM 350 Vortec Bare Blocks 13ZB

Engine Block, Vortec Roller, Cast Iron, 4-Bolt 350 Mains, 4 in. Diameter Bore, 1-Piece Rear Main Seal, Chevy Small Block, Each

Part Number: HPE-13ZB

Not Yet Reviewed

Estimated Ship Date: Oct 7, 2025 if ordered today

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Estimated Ship Date: Oct 7, 2025 if ordered today

World Products 351 Ford Man O'War Blocks 087172

Engine Block, Cast Iron, 4-Bolt Mains, 3.990 in. Diameter Bore, 1-Piece Rear Main Seal, Ford, Small Block, Each

Part Number: WRL-087172

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Aug 12, 2025 if ordered today

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Estimated Ship Date: Aug 12, 2025 if ordered today

World Products 302 C.I.D. Ford Man O'War Blocks 087110

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

Part Number: WRL-087110

Not Yet Reviewed

Estimated Ship Date: Monday 7/14/2025

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Estimated Ship Date: Monday 7/14/2025

World Products SBC Motown Blocks 084010

Engine Block, Cast Iron, 4-Bolt Mains, 4.000 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: WRL-084010

Not Yet Reviewed

Estimated Ship Date: Aug 12, 2025 if ordered today

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Estimated Ship Date: Aug 12, 2025 if ordered today

World Products Motown LS Iron Blocks 084080

Engine Block, Cast Iron, 4-Bolt Mains, 3.995 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: WRL-084080

Not Yet Reviewed

Estimated Ship Date: Aug 12, 2025 if ordered today

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Estimated Ship Date: Aug 12, 2025 if ordered today

World Products Man O'War Bare Blocks 087072

Engines, Bare Blocks, Man O'War Bare Block, 351 Cleveland Mains, 9.500 in. Deck Height, 4-bolt Main Style, Ford, 5.0L, 5.8L, Small Block Windsor, Each

Part Number: WRL-087072

Not Yet Reviewed

Estimated Ship Date: Aug 12, 2025 if ordered today

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Estimated Ship Date: Aug 12, 2025 if ordered today

World Products 351 Ford Man O'War Blocks 087150

Engine Block, Cast Iron, 4-Bolt Mains, 3.990 in. Diameter Bore, 1-Piece Rear Main Seal, Ford, Small Block, Each

Part Number: WRL-087150

Not Yet Reviewed

Estimated Ship Date: Aug 12, 2025 if ordered today

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Estimated Ship Date: Aug 12, 2025 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711112

Bare Blocks, Dart Race Series, Aluminum, 9.025 in Deck, 4.125 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Small Block,Chevy, Each

Part Number: DRT-31711112

Not Yet Reviewed

Estimated Ship Date: Aug 15, 2025 if ordered today

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Estimated Ship Date: Aug 15, 2025 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711122

Bare Blocks, Dart Race Series, Aluminum, 9.325 in Deck, 4.00 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Small Block,Chevy, Each

Part Number: DRT-31711122

Not Yet Reviewed

Estimated Ship Date: Aug 15, 2025 if ordered today

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Estimated Ship Date: Aug 15, 2025 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711132

Bare Blocks, Dart Race Series, Aluminum, 9.500 in Deck, 4.00 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Small Block,Chevy, Each

Part Number: DRT-31711132

Not Yet Reviewed

Estimated Ship Date: Aug 15, 2025 if ordered today

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Estimated Ship Date: Aug 15, 2025 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31711152

Bare Blocks, Dart Race Series, Aluminum, 8.850 in Deck, 4.00 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Small Block,Chevy, Each

Part Number: DRT-31711152

Not Yet Reviewed

Estimated Ship Date: Aug 15, 2025 if ordered today

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Estimated Ship Date: Aug 15, 2025 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712112

Bare Blocks, Dart Race Series, Aluminum, 9.025 in Deck, 4.000 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Small Block,Chevy, Each

Part Number: DRT-31712112

Not Yet Reviewed

Estimated Ship Date: Aug 15, 2025 if ordered today

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Estimated Ship Date: Aug 15, 2025 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712122

Bare Blocks, Dart Race Series, Aluminum, 9.325 in Deck, 4.000 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Small Block,Chevy, Each

Part Number: DRT-31712122

Not Yet Reviewed

Estimated Ship Date: Aug 15, 2025 if ordered today

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Estimated Ship Date: Aug 15, 2025 if ordered today

Dart Race Series Small Block Chevy Aluminum Bare Blocks 31712132

Bare Blocks, Dart Race Series, Aluminum, 9.500 in Deck, 4.000 in. Bore, 4-Bolt Mains,2-Piece Rear Main Seals,BBC Cam Tunnel,® Small Block,Chevy, Each

Part Number: DRT-31712132

Not Yet Reviewed

Estimated Ship Date: Aug 15, 2025 if ordered today

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Estimated Ship Date: Aug 15, 2025 if ordered today

Dart SHP Pro Special High Performance Small Block Chevy Cast Iron Bare Blocks 31161112

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

Part Number: DRT-31161112

Not Yet Reviewed

Estimated Ship Date: Aug 15, 2025 if ordered today

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Estimated Ship Date: Aug 15, 2025 if ordered today

Dart SHP Special High Performance Small Block Chevy Cast Iron Bare Blocks 31162111

Engine Block, Cast Iron, 400 Mains, 4.000 in. Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: DRT-31162111

Not Yet Reviewed

Estimated Ship Date: Aug 15, 2025 if ordered today

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Estimated Ship Date: Aug 15, 2025 if ordered today

Dart SHP Pro Special High Performance Small Block Chevy Cast Iron Bare Blocks 31162112

Engine Block, Cast Iron, 4-bolt Mains, 4.000 in. Diameter Bore, 2-piece Rear Main Seal, Chevrolet, Small Block, Each

Part Number: DRT-31162112

Not Yet Reviewed

Estimated Ship Date: Aug 15, 2025 if ordered today

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Estimated Ship Date: Aug 15, 2025 if ordered today