Chrysler Mopar BB 413 426 440 HiRise Aluminum Intake Manifold [Satin] This is our most popular

This is our most popular manifold and is showing up on many performance street machines and street rods

Manifolds are cast from steel molds

The Speedmaster throttle body begins as a billet of 6061- T6 aluminum for superior quality and is introduced to a state-of-the-art CNC machine

that have a 4bolt pattern

these housings tubes are manufactured with

Chrysler Mopar BB 413 426 440 HiRise Aluminum Intake Manifold [Satin] This is our most popularStep up to the high rpm power of an open plenum with Speedmaster HiRise intake manifolds. These cast aluminum manifolds accept square bore carburetors and are pressure tested to ensure maximum performance. They start to make awesome power around 3,000 rpm.