The Speedmaster 1-147-022 is a hi-rise aluminum intake manifold designed for Chevy Big Block 454 engines with rectangular port cylinder heads. Its hi-rise design promotes improved airflow and plenum volume, helping maximize power potential on performance street and race applications. The satin aluminum finish offers a clean, classic underhood appearance while resisting corrosion.
Engineered specifically for rectangular port BBC applications, this manifold is a straightforward bolt-on upgrade over stock cast-iron units, helping reduce overall engine weight and improve throttle response. Whether you're building a performance street cruiser or a dedicated track engine, the Speedmaster 1-147-022 delivers a quality aluminum intake solution for your Big Block Chevy 454 build.