Electric water pumps have a big advantage over mechanical units. No horsepower loss. Delivering 35 gallons per minute, these units will keep your big block Chevy powerhouse cool under the hottest conditions. Durable die cast aluminum and powder coated for corrosion resistance, these electric water pumps come in a variety of colors and sport a Bowtie logo.
The Short and Long of Chevy Water Pumps
Nova mechanical short style water pumps measure 5-5/8” high from the shaft down. Long style Nova water pumps measure 7” high from the shaft down. Do not mix and match pulleys from short and long water pump engines because this will cause pulley misalignment. An easy way to find out what style you have while your pump is still installed on the motor is to try to stick your hand between the water pump and timing chain cover. If you can slip your fingers in-between you have a long, if not you have a short