Dart - Block Sleeve - SBC 4.125 Id X 5.625 Long

Enhance your engine's performance with the Dart Block Sleeve, designed to fit small block Chevy models. This sleeve provides a 4.125-inch bore and 5.625-inch height, constructed with a 4.320-inch OD and 0.185-inch wall thickness to ensure durability under demanding conditions. It is ideal for optimizing horsepower and reliability, making it a top choice for automotive enthusiasts and professional racers. Built with the trusted quality of Dart components, each sleeve boasts a 9.025-inch deck and robust iron construction, guaranteeing exceptional longevity and consistent performance.