Supercharger: 8-71

GMC 8-71 series roots blower designed and manufactured for use on 2 stroke diesel engines. Eventually modified by enthusiasts for strip applications then later street and marine. The 8-71 originated as a 3 lobe design with 30 degree helix.

Company: GMC

Type: Roots

Series 71 Units Include: 8V-71, 6V-71, 4-71, 3-71, 2-71, 8-71, 6-71

Usage: Street

Availability: Discontinued

Drive Type: Belt

Displacement: 448 c.i.d. / rev. Approx.

Self Contained: No

Rotor Length: 15.9 inches

Center Case Height: 7.5 inches