B&M 420 Replacement Rotor Set [#9385]

With Holley discontinuing the B&M 420 Supercharger, TBS felt the need to produce a replacement Rotor Set for one of B&M’s most popular Supercharger.  This Rotor set is designed to be a direct fit into the original 420 Supercharger.  It is machine for the use of the original gears as well as incorporating a rear shaft for the IKO Roller Bearing Races.  These Rotors will be machined to include a Teflon OD strip and turned the stock OD Diameter for the 420 Case.

Includes:

– 420 Rotor Set

–  2 ea.  1/2-20 Gear Bolts and Heavey Duty Washers

– IKO Rear Bearing Races installed on Shafts