Engines, Bare Blocks - Aluminum Engine Block Material - 4.500 in. Cylinder Bore Diameter - Free Shipping on Orders Over $109 at Summit Racing

Dart Big M Big Block Chevy Aluminum Bare Blocks 31264444

Engine Block, Aluminum, 4-Bolt Mains, 4.500 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Big Block, Each

Part Number: DRT-31264444

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Estimated Ship Date: Nov 20, 2025 if ordered today

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Estimated Ship Date: Nov 20, 2025 if ordered today

Engine Block, Race Series, Aluminum, 4-Bolt Mains, 9.80 Deck, 4.500 in. Dia., Bore, 2-Piece Seal, Chevy, Each

Part Number: DRT-31264445

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Estimated Ship Date: Nov 20, 2025 if ordered today

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Estimated Ship Date: Nov 20, 2025 if ordered today

Engine Block, Race Series, Aluminum, 4-Bolt Mains, 10.2 Deck, 4.500 in. Dia., Bore, 2-Piece Seal, Chevy, Each

Part Number: DRT-31264455

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Estimated Ship Date: Nov 20, 2025 if ordered today

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Estimated Ship Date: Nov 20, 2025 if ordered today

Engine Block, Race Series, Aluminum, 4-Bolt Mains, 10.4 Deck, 4.500 in. Dia., Bore, 2-Piece Seal, Chevy, Each

Part Number: DRT-31264495

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Estimated Ship Date: Nov 20, 2025 if ordered today

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Estimated Ship Date: Nov 20, 2025 if ordered today