Billet Specialties Polished SB Chevy Double Groove Water Pump Pulley - SB Chevy - Short Water Pump 851001 1/2 in NPT Steel Fitting

1/2 in NPT Steel Fitting

900 in Oval Port

improved throttle response and better fuel economy

1/4 in Center Hole

Two programmable LEDs

Billet Specialties Polished SB Chevy Double Groove Water Pump Pulley - SB Chevy - Short Water Pump 851001 1/2 in NPT Steel FittingThe benefit of a billet aluminum pulley over a cast pulley is equal density. With a cast pulley, the aluminum is poured into a mold and then allowed to cool. This process can create variations in density throughout the pulley. Dense areas are heavier than the more porous areas causing the pulley to vibrate at high RPM. Our billet pulleys are equally dense throughout; equal weight translates to a true and balanced pulley drive system. Billet