Repl Cyle Sleev Brodix SBC 4.110 Bore 4.320 OD

The Darton Sleeves Replacement Cylinder Sleeve Brodix SBC with 4.110 bore and 4.320 OD is a precision-engineered engine block component designed for small-block Chevy platforms. This cylinder sleeve serves as a critical upgrade for marine engines, high-performance automotive builds, and any application requiring extended block life or bore restoration. Cast from steel with a 0.106-inch wall thickness and 5.535-inch height, this sleeve provides the durability and precision fit necessary for reliable power delivery in demanding conditions.

The 4.110-inch bore specification is sized for small-block Chevy engine configurations, making this sleeve ideal for both fresh overhauls and performance rebuilds. The 4.320-inch outer diameter interfaces precisely with Brodix small-block Chevy blocks, ensuring proper fit and concentricity during installation. Steel construction resists corrosion from saltwater exposure—a critical consideration for marine engines operating in coastal environments. The engineered wall thickness balances structural integrity with thermal conductivity, maintaining stable operating temperatures under sustained load. Proper installation requires precise honing and alignment; compatibility verification with your specific block and machine shop is essential before purchase.

This Darton cylinder sleeve is engineered for marine technicians, engine rebuilders, and performance shops restoring or upgrading small-block Chevy powerplants. Whether addressing worn cylinder walls in an offshore fishing vessel, extending the service life of a high-output engine, or building a competition-grade small-block, this sleeve provides the precision foundation that modern engine clearances and tolerances demand. The Brodix block specification ensures compatibility with one of the most common small-block Chevy platform configurations in marine and performance applications.

Cylinder sleeves are sold as individual units; most engine rebuilds require a complete set matched to your block's bore configuration. Darton sleeves are recognized for manufacturing precision and consistent quality across their product line. Verify your block's specific bore diameter, OD dimensions, and height requirements before ordering to ensure correct fit.