Dart block sleeves are durable and reliable! Dart replacement sleeves are the same premium sleeves as those used in their race series blocks. Fit your aluminum blocks with the strength of Dart cast iron block sleeves.

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Dart Cylinder Sleeve, Cast Iron, SBC 9.500 in. Deck, 4.000 in. Bore, 6.100 in. Length, in. Length, Each

Dart Cylinder Sleeve, Cast Iron, SBC 9.500 in. Deck, 4.000 in. Bore, 6.100 in. Length, in. Length, Each

$169.72

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Dart Cylinder Sleeve, Cast Iron, BBC 10.200 4.500 in. Bore, 6.770 in. Length +.010, Each

Dart Cylinder Sleeve, Cast Iron, BBC 10.200 4.500 in. Bore, 6.770 in. Length +.010, Each

$338.86

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Dart Cylinder Sleeve, Cast Iron, SBC AL New 9.025 in. Deck, 4.125 in. Bore, 5.825 in. Length,+.010 SF, Each

Dart Cylinder Sleeve, Cast Iron, SBC AL New 9.025 in. Deck, 4.125 in. Bore, 5.825 in. Length,+.010 SF, Each

$228.87

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Dart Cylinder Sleeve, Cast Iron, BBC 10.200 4.250 in. Bore, 6.770 in. Length + .030, Each

Dart Cylinder Sleeve, Cast Iron, BBC 10.200 4.250 in. Bore, 6.770 in. Length + .030, Each

$338.86

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Dart Cylinder Sleeve, Cast Iron, 9.750 in. Deck, 4.125 in. Bore, 6.335 in. Length, LSNSF, Each

Dart Cylinder Sleeve, Cast Iron, 9.750 in. Deck, 4.125 in. Bore, 6.335 in. Length, LSNSF, Each

$232.71

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Dart Cylinder Sleeve, Cast Iron, BBC 10.2 4.6 x 6.77 4.9 br space 4.8 O.D., Each

Dart Cylinder Sleeve, Cast Iron, BBC 10.2 4.6 x 6.77 4.9 br space 4.8 O.D., Each

$320.92

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