Chevy SBC 350 Billet Aluminum Short Water Pump Swp 2 Groove Water Pump Pulley They use silicon aluminum bi-metal

They use silicon aluminum bi-metal construction

Let everyone know you take high performance seriously by flying the Speedmaster name and colors on a Speedmaster banner

turbocharged and nitrous applications

and header clearance

These Speedmaster Fuel Rails feature a larger internal diameter that dampens the pulses and provides increased fuel volume

Chevy SBC 350 Billet Aluminum Short Water Pump Swp 2 Groove Water Pump Pulley They use silicon aluminum bi-metalTthese Speedmaster aluminum water pump pulleys. These water pump pulleys are made from a 356 aluminum alloy that is heat treated to T 6 specs, and come in machined or polished finishes to suit your application needs.