This is a 1972 Corvette 454 BB Water Pump GM #3992077 Dated E 4 72 (May 4, 1972). This water pump is frozen, but otherwise in good condition. It is being sold as a core. The casting of this pump would be good for 1972 Corvettes or possibly early 1973 big block Corvettes. It will work on any old big block Chevrolet 396,427, or 454.
All of the casting numbers are clear and crisp please take a look at the photos.