Supercharger Snout / Crank Pulley Spacer w/ Hardware Billet Aluminum 0.665" Thick These Speedmaster exhaust gaskets are

These Speedmaster exhaust gaskets are made from steel core laminate

more positive band engagement

a C5 Corvette hub bearing pack

This unit is recommended for street

Drum weights 55% less than the OEM drum

Supercharger Snout / Crank Pulley Spacer w/ Hardware Billet Aluminum 0.665" Thick These Speedmaster exhaust gaskets areSpeedmaster supercharger pulley spacers are designed to fit the Speedmaster nose drive assembly so that the belt alignment will be correct. They are made of aluminum and feature a natural finish. The spacers are available in different widths and register bore hole sizes to match your specific engine application and supercharger model. Each spacer will include their respective hardware.