Powerbore: A Leader in Custom and OEM Cylinder Sleeves Located in Salem, Ohio, Powerbore—a division of Quaker City Castings—manufactures custom and OEM cylinder sleeves for a broad range of engine applications. Whether your needs are standard, or high-demand, such truck and tractor pulling, or marine, street, cycle and other types of drag racing, strong, well-built, precisely-manufactured cylinder sleeves are of paramount importance. At Powerbore, we believe in taking a centralized, American-made approach, which starts with our own nearby foundry—in fact, it’s located right across the street! Having a foundry of our own means not importing materials (and as such, avoiding the risk of contamination, incorrect composition, and poor quality control), instead allowing us to cast and machine every sleeve we sell. Many manufacturers provide cylinder sleeves in a limited range of materials, which may be less than appropriate for highly demanding applications. Powerbore cylinder sleeves maximize the potential of any project: We can cast nearly any ferrous material found in the comprehensive ASTM (American Society for Testing and Materials) manual— and even custom-cast materials of your own design. If you require a sleeve in non-standard dimensions, we can help—custom cylinder sleeves are our specialty. Powerbore utilizes a number of materials—but for truck and tractor pullers, drag racers, and other “power users”, we proudly offer and most highly recommend Power Ductile™—our proprietary ductile iron, whose mechanical properties significantly outperform those of industry standard 100-70-03 ductile iron. Extreme conditions demand extreme materials. Power Ductile™ is up to any task you can put it to. It’s time to make the most of your engine applications. Choose Powerbore, where strength, quality and precision is built into everything we do. Visit http://powerbore.com/, or call (330) 332-1566 today!