Product Review
MidRise Intake Manifold
Big Block Chevy 454 Oval PortHeight: 4.650 in. Non-EGR RPM Range: 1,500-6,500 Satin Finish The Speedmaster MidRise Air design features the identical plenum and runner design as the normal MidRise. The main difference is that there is an open area under the plenum chamber. This feature is sometimes called an air gap design. The air flowing under the plenum provides a cooler charge for the incoming air with less heat transfer from the engine. This cooler air charge provides additional power and torque.
- 147 Intake Manifold, Carbureted
- Speedmaster creates unique and distinctive DNA items inspired by the blend of old and new technology. Its empowered work forced drives innovation not only in the products it sells but with the way it goes about doing it.
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![Speedmaster 1-147-019 Compatible with Chevy BBC 454 Oval Port MID-AIR MidRise Aluminum Intake Manifold [Satin]](https://m.media-amazon.com/images/I/41o2QP3vAcL._SL500_.jpg "Speedmaster 1-147-019 Compatible with Chevy BBC 454 Oval Port MID-AIR MidRise Aluminum Intake Manifold [Satin]")
