Speedmaster Oldsmobile 400 425 455 MID-AIR MidRise Aluminum Intake Manifold Satin 1-147-076

The Speedmaster Oldsmobile 400 425 455 MID-AIR MidRise Aluminum Intake Manifold is a high-performance replacement designed for Oldsmobile big-block V8 engines from the classic muscle car era. This precision-engineered aluminum manifold combines lightweight construction with the durability needed for street and performance driving, offering improved throttle response and engine efficiency compared to stock cast-iron alternatives.

Built to OEM specifications for direct fitment on Oldsmobile 400, 425, and 455 cubic inch engines, this intake manifold features a mid-rise design that optimizes port flow and runner geometry. The satin finish provides both a professional appearance and corrosion resistance. Installation is straightforward for engines requiring a modern, reliable intake solution, making this manifold ideal for restoration projects, performance upgrades, or stock replacements on classic Oldsmobile vehicles.

Key Features & Benefits

• Oldsmobile Big-Block Compatible: Engineered for 400, 425, and 455 cubic inch Oldsmobile V8 engines.
• Aluminum Construction: Lightweight aluminum design improves throttle response and reduces engine weight.
• MidRise Design: Optimized port flow geometry for enhanced engine performance.
• Satin Finish: Professional appearance with corrosion-resistant surface treatment.
• OEM-Spec Fitment: Direct replacement that maintains compatibility with stock engine configuration.

Specifications

Ideal Applications

• Classic muscle car restoration and engine rebuilds
• Oldsmobile big-block V8 performance upgrades
• Direct replacement on stock 400, 425, or 455 engines
• Street and weekend performance driving