Engines, Bare Blocks - 4.500 in. Cylinder Bore Diameter - 280 Engine Block Weight (lbs.) - Free Shipping on Orders Over $109 at Summit Racing

Dart Big M2 Big Block Chevy Cast Iron Bare Blocks 31213454

Dart Big M2 Big Block Chevy Cast Iron Bare Blocks 31213454

Bare Blocks, Dart Big M Series, Cast Iron, 10.200 in. Deck Height, 4.500 in. Bore, 4-Bolt Main, 2-Piece Rear Main Seal, Big Block, Chevy, Each

Part Number: DRT-31213454

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Dart Big M2 Big Block Chevy Cast Iron Bare Blocks 31223454

Bare Blocks, Dart Big M Sportsman Series, Cast Iron,10.200 in. Deck Height, 4.500 in,Bore,4-Bolt Main,2-Piece Rear Main Seal, Big Block, Chevy, Each

Part Number: DRT-31223454

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Dart Big M2 Pro Series Big Block Chevy Cast Iron Bare Blocks 31223445

Bare Blocks, Dart Big M Sportsman Series, Cast Iron,9.800 in. Deck Height, 4.250 in,Bore,4-Bolt Main,2-Piece Rear Main Seal, Big Block, Chevy, Each

Part Number: DRT-31223445

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Dart Big M2 Pro Series Big Block Chevy Cast Iron Bare Blocks 31223455

Bare Blocks, Dart Big M Sportsman Series, Cast Iron,10.200 in. Deck Height, 4.500 in,Bore,4-Bolt Main,2-Piece Rear Main Seal, Big Block, Chevy, Each

Part Number: DRT-31223455

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Dart Big M2 Big Block Chevy Cast Iron Bare Blocks 31213444

Bare Blocks, Dart Big M Series, Cast Iron,9.800 in. Deck Height, 4.500 in,Bore,4-Bolt Main,2-Piece Rear Main Seal, Big Block, Chevy, Each

Part Number: DRT-31213444

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Dart Big M2 Pro Series Big Block Chevy Cast Iron Bare Blocks 31213445

Bare Blocks, Dart Big M Series, Cast Iron, 9.80 in. Deck Height, 4.250 in. Bore, 4-Bolt Main, 2-Piece Rear Main Seal, Big Block, Chevy, Each

Part Number: DRT-31213445

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Dart Big M2 Pro Series Big Block Chevy Cast Iron Bare Blocks 31213455

Bare Blocks, Dart Big M Series, Cast Iron, 10.200 in. Deck Height, 4.500 in. Bore, 4-Bolt Main, 2-Piece Rear Main Seal, Big Block, Chevy, Each

Part Number: DRT-31213455

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Dart Big M2 Pro Series Big Block Chevy Cast Iron Bare Blocks 31223495

Bare Blocks, Dart Big M Series, Cast Iron,10.400 in. Deck Height, 4.500 in,Bore,4-Bolt Main,2-Piece Rear Main Seal, Big Block, Chevy, Each

Part Number: DRT-31223495

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today