Stage 3 Aluminum Water Pump for Chevrolet Small Block Short

Our products high-performance automotive components for racing, street and off-road use. We always work towards to fulfill the requirements of our end users. Stage 3 - These pumps are assembled with exclusive Stewart Components 356-T6 heat treated aluminum castings. Designed in our cooling system research and development lab and precision machined on CNC machining centers. The fan hubs are 1/2 in thick and machined from billet steel. These hubs are preferred by many top engine builders for lower vibration in higher RPM applications. Recommended for Moderate to heavy racing applications. Extra material adjacent to block mounting bolts to allow drilling and taping of up to 1/2 in NPT holes for installing external coolant lines to the center of the engine ( small block and big block Chevrolet short castings). Features High quality construction and durability. Variety of styles for every type of accessory. Billet steel fan hub, 1/2 in thick with set screw for more positive positioning. Exclusive Stewart 356-T6 heat treated aluminum casting. Extra rigid cam stop with 3/8 in adjustment screw ( small block Chevrolet short castings). Precision ground fan hub for perfect pulley alignment. Equal flow to left and right cylinder heads. Precision impeller installed to exacting tolerance. Zinc plated rear cover bolt. Higher flow and pressure for better cooling. Models with 3/4 in ball/roller bearings offer five times the strength of standard bearings. Compatibility Chevrolet Small Block Short. Specifications Material: Aluminum.