Ford SB 289 302 351W 351C Serpentine Billet Aluminum Water Pump Pulley They're available for a variety

They're available for a variety of applications

CNC-machined from high-tensile billet steel for strength and precision

improved meshing to reduce tooth jump

they also provide your engine with cleaner air for better performance

Speedmaster extruded aluminum and stainless steel shaft mount rocker system includes steel shafts with pedestals

Ford SB 289 302 351W 351C Serpentine Billet Aluminum Water Pump Pulley They're available for a varietyThese Speedmaster aluminum water pump pulleys are made from a 356 aluminum alloy that is heat treated to T 6 aluminum specifications and come in machined or polished finishes to suit your application.