Speedmaster 1-147-076 MidRise Air Aluminum Intake Manifold, Satin

The Speedmaster 1-147-076 is a MidRise Air aluminum intake manifold for the Oldsmobile 400, 425 and 455 engines, finished in satin. It is a high-rise, high-performance single-plane intake manifold with a divider, and it is the only one available for this engine in that configuration.

Key Features:

• Aluminum construction with a satin finish
• Single-plane design with a divider
• MidRise Air design leaves an air gap under the plenum chamber, which helps cool the intake charge for additional power
• About 1.25 inches taller than competitive manifolds, which allows more power to be produced
• Available with machined injector bosses

Important: This manifold is approximately 1.25 inches taller than a similar stock intake manifold, so check hood clearance before installation.