6-71 6/71 Roots Supercharger Blower - 3-Lobe Twisted Rotors [Polished] It ensures precise alignment and

It ensures precise alignment and improved handling

Speedmaster ribbed aluminum valve covers feature a classic raised

all gauges come with a 1/8 in

Speedmaster underdrive pulley kits are built from aircraft-quality material and computer-machined

6-71 6/71 Roots Supercharger Blower - 3-Lobe Twisted Rotors [Polished] It ensures precise alignment andSpeedmaster 6 71 Street Supercharger's can give you 45 55 percent more power. They feature double pinned rotors (timed and clearanced after assembly), heavy duty front and rear bearing plate. We offer complete kits that included everything you including an intake manifold with a pop off valve relocated to the back. the rotor lenght is 380mm