Repl Cyl Sleeve Donovan 700 Block 4.490 Bore

The Repl Cyl Sleeve Donovan 700 Block 4.490 Bore from Darton Sleeves is a precision-engineered cylinder sleeve designed for serious engine builders and performance shops working with Donovan 700 big-block platforms. This replacement sleeve is designed to restore bore diameter integrity when original sleeves are worn, scored, or damaged, making it a critical component for rebuilding high-displacement or high-horsepower engines that demand dimensional accuracy and longevity.

Manufactured from premium cast iron, Darton sleeves utilize advanced precision boring and honing techniques to achieve exact bore specifications. The 4.490-inch bore dimension accommodates larger pistons and rings, allowing engine builders to increase displacement or restore overbored engines to their original specifications. These sleeves feature a durable, hardened surface that resists wear and thermal stress, which is crucial in high-RPM or turbocharged applications.

Ideal for engine shops and transmission specialists, this replacement sleeve ensures proper piston-to-wall clearance and ring sealing for optimal compression and minimal blow-by. Its compatibility with the Donovan 700 big-block engine makes it a valuable addition for those refreshing vintage muscle car engines or building dedicated race engines.