Chevy BBC 454 High Volume Aluminum Short Water Pump Chrome also known as the GM

also known as the GM 8

These Speedmaster supercharger manifolds are aluminum constructed and suitable for competition or street use

These one-piece Speedmaster pushrods are heat-treated for use with guideplates

If you are looking for a manifold to use with your 8-71 or 6-71 supercharger

and 3/8 in

Chevy BBC 454 High Volume Aluminum Short Water Pump Chrome also known as the GMSpeedmaster high volume water pumps have a ribbed aluminum housing and a heavy duty ball roller bearing assembly. Speedmaster water pumps have a bigger impeller and larger cavity size to flow 40 percent more coolant than stock. Choose long or short styles in a natural or shiny polished finishes. Get high flow for your car with Speedmaster water pumps.