The Weiand 9240 Action Plus+ mechanical water pump is engineered for high-performance small block Chevy V8 engines. Precision-machined from high-quality cast iron, this long-style water pump integrates advanced impeller design and optimized volute housing to deliver superior coolant flow at both idle and high RPM ranges.

Technical Specifications:

• Application: Small Block Chevy V8 (1955-1995)
• Style: Long
• Material: Cast Iron Construction
• Impeller: High-flow 6-vane design
• Shaft Diameter: 0.750 inches
• Shaft Material: Heavy-duty steel
• Hub Height: 5.625 inches
• Rotation: Clockwise
• Bearing Type: Heavy-duty sealed ball bearings
• Gasket Surface: CNC-machined for precise sealing
• Finish: Natural cast
• Hub Type: Bolt-on
• Pulley Compatibility: Standard V-belt and serpentine systems

Performance Features:

• Flow Rate: Up to 35% increased flow over stock pumps
• Maximum RPM Rating: 8,000 RPM
• Operating Temperature Range: Up to 230°F
• Pressure Rating: Up to 18 PSI
• Bearing Life: 100,000+ miles under normal use

Installation Notes:

• Direct bolt-on replacement
• Includes necessary mounting hardware
• Compatible with both short and long timing chain covers
• Requires standard SBC water pump gaskets
• Works with factory and aftermarket pulleys