The Speedmaster PCE148.1012 is a polished high-rise intake manifold designed for Chevy Big Block 454 engines featuring rectangular port cylinder heads. Built in a Dominator-style configuration, it is engineered to support high-performance applications and includes injection ports, giving you the flexibility to accommodate fuel injection setups alongside traditional carburetor use.
The polished finish delivers a clean, show-quality appearance under the hood, while the high-rise design promotes improved airflow and top-end power potential. Whether you are building a street-strip machine or a dedicated performance build around a BBC 454 rectangular port combination, this Speedmaster manifold is a straightforward bolt-on upgrade designed to complement your engine's breathing capability.
![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]")