Chevy BBC 454 Oval Port MID-AIR™ MidRise Aluminum Intake Manifold [Black] These manifolds require a universal

These manifolds require a universal 4-barrel throttle body

let a Speedmaster aluminum Competition series radiator give your high-powered race car the advantage

Speedmaster keeps you in the race with competitive pricing and quality parts

a C5 Corvette hub bearing pack

Speedmaster shifters designed to fit most 3 or 4-speed automatic transmissions

Chevy BBC 454 Oval Port MID-AIR™ MidRise Aluminum Intake Manifold [Black] These manifolds require a universalThe 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.