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, BBC 10.400 4.500 in. Bore, 7.000 in. Length + .030, Each

Dart Cylinder Sleeve, Cast Iron, BBC 10.400 4.500 in. Bore, 7.000 in. Length + .030, Each

$338.86

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Sonnax 1-2 Accumulator Sleeve Kit, Th350, Th350C, Each

Sonnax 1-2 Accumulator Sleeve Kit, Th350, Th350C, Each

$183.25

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Dart Cylinder Sleeve, Cast Iron, BBC 9.800 in. Deck, 4.5 in. Bore, 6.37 in. Length, +.010 SF, Each

Dart Cylinder Sleeve, Cast Iron, BBC 9.800 in. Deck, 4.5 in. Bore, 6.37 in. Length, +.010 SF, Each

$338.86

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Sonnax Outer Pressure Regulator Sleeve, Mercedes 722.6, Each

Sonnax Outer Pressure Regulator Sleeve, Mercedes 722.6, Each

$124.61

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Dart Cylinder Sleeve, Cast Iron, BBC 5.2, 4.750 5.280 x 8.250 5.040 O.D., Each

Dart Cylinder Sleeve, Cast Iron, BBC 5.2, 4.750 5.280 x 8.250 5.040 O.D., Each

$310.04

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Dart Cylinder Sleeve, Cast Iron, BBC 10.4 in. Deck, 4.6 in. Bore, 7.00 in. Length, SF, Each

Dart Cylinder Sleeve, Cast Iron, BBC 10.4 in. Deck, 4.6 in. Bore, 7.00 in. Length, SF, Each

$254.52

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