Whipple 8-Rib Super Charger 5 Bolt Pulley 3.250″ in Black

The Whipple Supercharger pulley is made of 6061-T6 billet aluminum, and anodized for environmental protection and wear. Every pulley is engraved with the running diameter size and state-of-the-art lightweight pockets to lower reciprocating mass and act as a guard feature to help unwanted belt wandering during hard running. The dimension of every supercharger pulley is based on the running diameter.

•  The standard finish is black hard-coated anodized.
• Whipple Supercharger pulleys are specific to the application. Do not order this pulley for a different application.
• A general rule of thumb is every .125″ of pulley change is 1 psi of boost. We do not accept returns or exchanges for used pulleys.