DART SBC Sleeves 9.500 – 4.125 x 6.300 plus.010 Single Flat

Upgrade your Small Block Chevy engine with Dart Small Block Chevy Sleeves, measuring 9.500″ in length and featuring a bore size of 4.125″ x 6.300″. Precision-engineered and constructed with premium materials, these sleeves offer durability and reliability for high-performance applications. With a single flat design and a slight overbore of .010″, they provide a perfect fit and ensure optimal engine performance. Whether you’re rebuilding a race engine or enhancing your street machine, these Dart sleeves deliver the quality and performance you demand.