Meziere 300 Series Electric Water Pump w/Low Pressure Port Big Block Chevy
680-WP300UP

Chevy - Big Block
The Meziere 300 series high flow pump changed the rules about using electric water pumps on high horsepower street, nitrous, blown, or boosted engines. Delivering 55 gallons per minute of flow, the 300 series pump offers great cooling solutions to high horsepower vehicles. Higher flow rates reduce the chance of detonation.
Note: This pump is street practical with its heater or bypass port already machined into the housing. There's no need to freeze this winter...hook up the heater and go cruise!
Technical Specifications:
Additional Notes: The standard 35GPM pump is suitable for normally aspirated engines up to 650HP. Supercharged, turbocharged and high compression, high horsepower applications should use the 55GPM High Flow pump only. This model does accept one heater or bypass hoses as a standard.
Specifications:
What is a low pressure port?
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools:
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.