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 10.2 in. Deck, 4.5 in. Bore, 6.77 in. Length, SF, Each

Dart Cylinder Sleeve, Cast Iron, BBC 10.2 in. Deck, 4.5 in. Bore, 6.77 in. Length, SF, Each

$303.00

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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

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Dart Cylinder Sleeve, Cast Iron, BBC 5.3, 4.950 in. Bore, 5.380 in. Flange, 8.250 in. Length, 5.150 O.D., Each

Dart Cylinder Sleeve, Cast Iron, BBC 5.3, 4.950 in. Bore, 5.380 in. Flange, 8.250 in. Length, 5.150 O.D., Each

$351.26

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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

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Sonnax Overdrive & Intermediate Servo Pin Bore Sleeve Kit, Ford, 5R55N, 5R55S, 5R55W, Each

Sonnax Overdrive & Intermediate Servo Pin Bore Sleeve Kit, Ford, 5R55N, 5R55S, 5R55W, Each

$87.35

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Sonnax Pressure Regulator Sleeve Kit, Ford, 5R55S/W, Each

Sonnax Pressure Regulator Sleeve Kit, Ford, 5R55S/W, Each

$125.38

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