Victor Pro Series water pump for GM LS Series engines, but will require the use of aftermarket competition brackets. It measures 6" from the block surface to the hub and features a relocated thermostat housing on the top. It is a standard clockwise rotation design to accommodate racers using a simplified accessory drive setup. It is primarily designed for use in racing application and will require the use of longer than stock mounting bolts. Can be modified for street applications, but will not fit stock accessory brackets. Can not be used with the stock o/e manifold, as it must be used with carbureted style manifilds. 1.85" inlet diameter. Ideal for a Demo Derby application utilizing the LS Engine series. Accepts conventional S/B Chevy Thermostat.