![Chevy BBC 454 Rect Port HiRise Aluminum Intake Manifold [Polished] are molded from a high-quality](https://cdn.shopify.com/s/files/1/0762/0316/3867/files/1-147-023.jpg?v=1784453791)
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are molded from a high-quality
Built for performance
reducing the load on all internal components
They weigh only 2
Chevy BBC 454 Rect Port HiRise Aluminum Intake Manifold [Polished] are molded from a high-qualityStep 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.
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