![Chevy BBC 454 Rect Port HiRise Aluminum Intake Manifold [Black] They're so tough](https://cdn.shopify.com/s/files/1/0762/0316/3867/files/1-147-024.jpg?v=1785226831)
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They're so tough
Featuring thicker walls and more gusseting than any other manufacturer
2 SFI Approved and will withstand the extreme power and rpm of your performance application
These Speedmaster tailshaft housings are designed to fit the stock Turbo 400 transmissions
Chevy BBC 454 Rect Port HiRise Aluminum Intake Manifold [Black] They're so toughStep 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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