Chrysler Mopar BB 413 426 440 Supercharger Crank / Balancer Hub Only These valve covers are TIG-welded

These valve covers are TIG-welded and are manufactured to help eliminate distortion and ensure a perfect fit to help protect your valve covers and rocker arms

These rockers are precision-machined to ensure consistency and ratio accuracy and have a great looking finish

These MidAir Series Manifolds includes a 4150 Series 1200 CFM Billet Throttle Body

and all accessory gaskets--everything for a complete engine rebuild

block for added strength

Chrysler Mopar BB 413 426 440 Supercharger Crank / Balancer Hub Only These valve covers are TIG-weldedSpeedmaster supercharger balancer hub adaptors are designed to fit your balancer so that the belt alignment will be correct. They are made of aluminum and feature a natural finish. The adaptors are available in different widths and register bore hole sizes to match your specific engine application and supercharger model.