Dart is committed to producing the best engine components available, including the Dart Big M Mark IV big block Chevy full water cast iron bare blocks--engineered for applications where water between the bores is a requirement. Siamese bore versions are also available for larger bore applications.

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Dart Engine Block, Big M Race Series Chevorlet Big Aluminum, 4.500 In. Bore, 10.400 In. Deck, Each

Dart Engine Block, Big M Race Series Chevorlet Big Aluminum, 4.500 In. Bore, 10.400 In. Deck, Each

$15,136.99

World Engine, Bare Block, Merlin IV BB Chev Iron Block - 10.200" Deck, 4.495" Bore, Billet Caps, Std. Cam, Std. Lifters

World Engine, Bare Block, Merlin IV BB Chev Iron Block - 10.200" Deck, 4.495" Bore, Billet Caps, Std. Cam, Std. Lifters

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World BB Chev Engine Block, Merlin III BBC Iron Block - 10.200" Deck, 4.245" Bore, Nodular Caps, Std. Cam, Std. Lifters

World BB Chev Engine Block, Merlin III BBC Iron Block - 10.200" Deck, 4.245" Bore, Nodular Caps, Std. Cam, Std. Lifters

$5,083.07

Dart Engine Block, Big M, 4-Bolt Mains, 2-Piece Rear Seal, BBC 9.8, Standard, 4.250water bn br GenV, Each

Dart Engine Block, Big M, 4-Bolt Mains, 2-Piece Rear Seal, BBC 9.8, Standard, 4.250water bn br GenV, Each

$4,216.56

Dart Engine Block, Big M, 4-Bolt Mains, 2-Piece Rear Seal, BBC 9.800 4.500 2.125 Cam, Each

Dart Engine Block, Big M, 4-Bolt Mains, 2-Piece Rear Seal, BBC 9.800 4.500 2.125 Cam, Each

$6,536.65

Dart Engine Block, Big M, 4-Bolt Mains, 2-Piece Rear Seal, BBC 10.2, Standard, 4.250water bn br GenVI, Each

Dart Engine Block, Big M, 4-Bolt Mains, 2-Piece Rear Seal, BBC 10.2, Standard, 4.250water bn br GenVI, Each

$4,216.56