oldsmobile 400-455 v8 single plane aluminum intake manifold - KSP Performance

This aluminum single plane intake manifold is engineered for Oldsmobile V8 400 / 425 / 455 engines, offering improved airflow and performance for classic builds. Machined from durable cast aluminum, it delivers lighter weight and resistance to heat soak compared with heavier materials. The single plane runner design favors higher RPM operation, making it ideal for performance camshafts and high-rev motors. Precision ports and flanges ensure optimal alignment and sealing for efficient mixture distribution across all cylinders. With its compatibility tailored specifically to the Oldsmobile 400–455 family, this manifold is perfect for restoration enthusiasts, street performance builders, muscle car lovers, and custom engine projects. Whether you are assembling a classic muscle car, restoring a vintage Olds, or building a high RPM engine, this aluminum single plane intake manifold brings a balance of strength, airflow, and compatibility to your build.