Darton Sleeves Replacement Cylinder Sleeve SB Chevy 4.090 Bore 4.375 OD M59C The X1 Series provides flexible

The X1 Series provides flexible performance that grows as your fuel system grows

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Darton Sleeves Replacement Cylinder Sleeve SB Chevy 4.090 Bore 4.375 OD M59C The X1 Series provides flexibleProduct Description: Cylinder Sleeve 4. 090 in Bore 6. 750 in Height 4. 375 in OD 0. 143 in Wall Steel Small Block Chevy Sold Individually Darton is a manufacture of engine block sleeves. Using specialized ductile iron, their sleeves fit a variety of engine makes and sizes.