Supercharger LS1 LS3 Crankshaft Spacer Hub 1.250" Corvette Balancer Speedmaster freeze plugs will not

Speedmaster freeze plugs will not rot out

Made from totally new components

They feature very precise valve operation

and withstand pressure up to 15 psi

they can also offer significantly longer life than conventional cork gaskets

Supercharger LS1 LS3 Crankshaft Spacer Hub 1.250" Corvette Balancer Speedmaster freeze plugs will notSpeedmaster 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.