Weiand Aluminum Action Plus - Mechanical
Action +Plus Water Pump
- Fits 1969-87 Chevrolet Big Block and some 1988-91 heavy-duty trucks with Mark IV engines. Does not fit Corvettes or 1-ton trucks.
- Lightweight aluminum
- CNC Machined
- Heavy duty shaft with 5/8" pilot
Weiand's light weight, performance aluminum mechanical Action-Plus water pumps give a weight saving of 30% to 50% over stock cast-iron pumps. These pumps have been completely redesigned for better performance and utilize our exclusive "twisted snout" look and feature a premium quality bearing and seal that have twice the load capacity of stock pumps. Weiand's exclusive housing counterbore keeps the bearing form "walking" out. All pumps are designed with the necessary bracket bosses and water connections to fit popular street applications.