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

used anywhere a bolt with a captured washer is needed

Buttons are designed for fast

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aFe's transmission pan adds an additional 7 quarts over stock

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.