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, Ford 8.200 in. Deck, 4.125 in. Bore, 5.175 in. Length, Each

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Dart Cylinder Sleeve, Cast Iron, 9.240 in. Deck, 4.125 in. Bore, 5.825 in. Length, LSN +.010, SF, Each

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Dart Cylinder Sleeve, Cast Iron, BBC 9.800 4.600 in. Bore, 6.370 in. Length, Each

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Sonnax 3-4 Overlap Control Sleeve Kit, Mercedes 722.6, Each

Sonnax 3-4 Overlap Control Sleeve Kit, Mercedes 722.6, Each

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Dart Cylinder Sleeve, Cast Iron, 9.750 in. Deck, 4.000 in. Bore, 6.335 in. Length, LSN +.010 SF, Each

Dart Cylinder Sleeve, Cast Iron, 9.750 in. Deck, 4.000 in. Bore, 6.335 in. Length, LSN +.010 SF, Each

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Dart Cylinder Sleeve, Cast Iron, 9.240 in. Deck, 4.125 in. Bore, 5.825 in. Length, LSNSF, Each

Dart Cylinder Sleeve, Cast Iron, 9.240 in. Deck, 4.125 in. Bore, 5.825 in. Length, LSNSF, Each

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