Speedmaster 1-147-097 Oldsmobile 400 425 455 LowRise Aluminum Intake Manifold Satin

The Speedmaster 1-147-097 is a low-rise aluminum intake manifold engineered for Oldsmobile 400, 425, and 455 cubic-inch engines. Constructed from lightweight aluminum with a satin finish, this manifold delivers improved airflow characteristics while reducing overall engine bay weight compared to cast-iron alternatives. The compact low-rise design provides additional clearance for engine accessories and hood configurations, making it ideal for both street and performance builds.

This Speedmaster intake manifold is compatible with the full range of big-block Oldsmobile V8 platforms and integrates seamlessly with OEM and aftermarket fuel and ignition systems. The durable aluminum construction resists corrosion and maintains structural integrity under sustained driving conditions. Whether you're restoring a classic Oldsmobile muscle car or upgrading an existing big-block platform, this performance intake delivers the functionality and appearance enthusiasts demand.

Key Features & Benefits

• Low-Rise Design: Compact profile provides increased engine compartment clearance for accessories and custom hood fitment.
• Aluminum Construction: Lightweight aluminum reduces overall engine weight while improving thermal characteristics.
• Satin Finish: Premium satin coating offers corrosion resistance and a refined appearance.
• Oldsmobile 400/425/455 Compatible: Direct fit for all Oldsmobile big-block V8 engines in these displacement classes.
• Performance Flow: Optimized port design enhances air intake efficiency and combustion performance.

Specifications

Ideal Applications

• Classic Oldsmobile muscle car restoration and engine upgrades
• Big-block V8 performance and street builds
• Oldsmobile engine swaps and platform conversions
• Custom hot rod and performance vehicle projects