Engines, Bare Blocks - 4.185 Maximum Bore Diameter (in.) - Free Shipping on Orders Over $109 at Summit Racing

Summit Racing™ SPC Pro LS Block SUM-150216

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

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Summit Racing™ SPC Engine Blocks SUM-150215

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

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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: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

Dart SHP Special High Performance Small Block Ford Cast Iron Bare Blocks 31375235

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 )

Estimated Ship Date: Today

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Dart SHP Special High Performance LS Next Pro Cast Iron Bare Blocks 31867212

Dart SHP Special High Performance LS Next Pro Cast Iron Bare Blocks 31867212

Bare Block, Cast Iron, LS Mains, 4.125 in. Bore, 9.24 in. Deck Height, Each

Part Number: DRT-31867212

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Dart SHP Special High Performance Small Block Ford Cast Iron Bare Blocks 31374275

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

Part Number: DRT-31374275

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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

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Ford Performance Parts Boss 351 C.I.D. Engine Blocks M-6010-B35192BB

Engine Block, Cast Iron, 4-Bolt Mains, 4.115 in. Bore, 9.200 in. Deck Height, Ford, Boss 351, Each

Part Number: FMS-6010B35192BB

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

Dart Little M2 Small Block Chevy Cast Iron Bare Blocks 31181235

Bare Blocks, Dart Little M Series, Cast Iron, 9.500 in. Deck Height, 4.125 in. Bore, 4-Bolt Main, 2-Piece Rear Main Seal, Small Block, Chevy, Each

Part Number: DRT-31181235

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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

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