Upgrade your big-block Chevy 454 with the Speedmaster 1-147-023 Hi-Rise Aluminum Intake Manifold, designed for rectangular-port cylinder heads. The lightweight aluminum construction helps reduce overall engine weight while the hi-rise design promotes improved plenum volume and airflow for enhanced throttle response and top-end power.
The polished finish delivers a show-quality appearance under the hood, making it a great choice for both performance builds and display vehicles. Designed to fit BBC 454 applications with rectangular-port heads, this manifold offers a direct-fit upgrade for enthusiasts looking to maximize their big-block's potential.
MPN1-147-023
UPC840136564850
![Speedmaster 1-147-024 Chevy BBC 454 Rect Port Hi-Rise Aluminum Intake Manifold [Black]](https://cdn11.bigcommerce.com/s-o2urolu8d5/images/stencil/500x659/products/363436/393468/71fAwGyrTwL__11126.1787170068.jpg?c=1 "Speedmaster 1-147-024 Chevy BBC 454 Rect Port Hi-Rise Aluminum Intake Manifold [Black]")
![Speedmaster 1-147-017 Chevy BBC 454 Oval Port Low-Rise Aluminum Intake Manifold [Polished]](https://cdn11.bigcommerce.com/s-o2urolu8d5/images/stencil/500x659/products/356075/385100/716Rt-7-W7L__40139.1787165751.jpg?c=1 "Speedmaster 1-147-017 Chevy BBC 454 Oval Port Low-Rise Aluminum Intake Manifold [Polished]")
![Speedmaster 1-147-018 Chevy BBC 454 Oval Port Low-Rise Aluminum Intake Manifold [Black]](https://cdn11.bigcommerce.com/s-o2urolu8d5/images/stencil/500x659/products/362871/392904/71F8PUSsG5L__09444.1787168942.jpg?c=1 "Speedmaster 1-147-018 Chevy BBC 454 Oval Port Low-Rise Aluminum Intake Manifold [Black]")