Proflow's LS1 Ultra Cool water pumps are the perfect choice when changing or rebuilding your street LS engine. They have a stamped steel impeller that provides optimum water flow over the stock housing while consuming less horsepower.

Note: Does not suit aftermarket timing covers.

Proflow's LS1 Ultra Cool water pumps are the perfect choice when changing or rebuilding your street LS engine. They have a stamped steel impeller that provides optimum water flow over the stock housing while consuming less horsepower.

Note: Does not suit aftermarket timing covers.