These Speedmaster 8-71 and 6-71 supercharger manifolds are aluminum constructed and suitable for competition or street use
These cast aluminum manifolds accept square-bore carburetors and are pressure tested to ensure maximum performance
heat-treated to the highest Rockwell hardness available
They're 40 percent lighter
equal-distribution layout produces great midrange torque without compromising top-end power
Chevy LS1 LS6 Satin Aluminum Intake Manifold with 90mm Throttle Body These Speedmaster 8-71 and 6-71The Speedmaster GM LS1 LS2 LS6 Modular Hi Ram Intake Manifold is introduced as a cost effective alternative to fabricated sheet metal for high performance applications where induction system height is not limited. Aggressive, bold, race bred styling will make bad intentions clear for drag race, muscle car, marine, off road, sandrails, pulling trucks, track, street rod applications and more!