Engines, Bare Blocks - 10.400 in. Deck Height (in.) - 4.625 Maximum Bore Diameter (in.) - Free Shipping on Orders Over $109 at Summit Racing

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

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Estimated Ship Date: Aug 15, 2025 if ordered today

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Estimated Ship Date: Aug 15, 2025 if ordered today

Bare Blocks, Dart Big M Series, Cast Iron,10.400 in. Deck Height, 4.560 in,Bore,4-Bolt Main,2-Piece Rear Main Seal, Big Block, Chevy, Each

Part Number: DRT-31223595

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Estimated Ship Date: Aug 15, 2025 if ordered today

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Estimated Ship Date: Aug 15, 2025 if ordered today

Bare Blocks, Dart Big M Series, Cast Iron,10.400 in. Deck Height, 4.560 in,Bore,4-Bolt Main,2-Piece Rear Main Seal, Big Block, Chevy, Each

Part Number: DRT-31223695

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Estimated Ship Date: Aug 15, 2025 if ordered today

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Estimated Ship Date: Aug 15, 2025 if ordered today

Bare Blocks, Dart Big M Series, Cast Iron,10.400 in. Deck Height, 4.250 in,Bore,4-Bolt Main,2-Piece Rear Main Seal, Big Block, Chevy, Each

Part Number: DRT-31213395

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Estimated Ship Date: Aug 15, 2025 if ordered today

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Estimated Ship Date: Aug 15, 2025 if ordered today

Bare Blocks, Dart Big M Series, Cast Iron,10.400 in. Deck Height, 4.600 in,Bore,4-Bolt Main,2-Piece Rear Main Seal, Big Block, Chevy, Each

Part Number: DRT-31213695

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

Bare Blocks, Dart Big M Series, Cast Iron,10.400 in. Deck Height, 4.250 in,Bore,4-Bolt Main,2-Piece Rear Main Seal, Big Block, Chevy, Each

Part Number: DRT-31223395

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