Chevy 348-409 Performer RPM Intake Manifold

The Chevy 348-409 Performer RPM Intake Manifold by Edelbrock is engineered for big-block Chevrolet engines running the legendary W-Series platform. Built for enthusiasts and mechanics who demand reliable, repeatable performance from classic muscle powerplants, this aluminum intake delivers the breathing efficiency required to unlock dormant horsepower in 348 and 409 cubic inch mills. Whether you're restoring a vintage Impala SS or hot-rodding a full-size truck, this dual-plane design bridges the gap between street responsiveness and track capability.

The Performer RPM architecture uses a dual-plane plenum design to optimize cylinder charging across the RPM range, reducing heat soak and improving volumetric efficiency during both cruise and wide-open-throttle conditions. Cast aluminum construction keeps weight low while maintaining structural integrity under sustained boost or carburetor loads. The square-bore design accommodates traditional four-barrel carburetors, offering straightforward bolt-on fitment without adapters. Natural finish aluminum allows for custom painting or polishing to match your engine bay aesthetic. At 23 pounds, the intake's lightweight profile minimizes rotating inertia while the compact 15 x 7.5 x 24-inch envelope fits tight underhood spaces in vintage and modified W-Series applications.

This manifold is ideal for street cruisers, weekend warriors, and restorationists working with original or crate 348-409 engines. Installation requires standard carburetor gaskets, fuel line adapters, and basic hand tools—no special porting or machine work needed. Compatibility is confirmed for all GM W-Series big-block platforms; verify your specific year and engine displacement before ordering. The Performer RPM strikes a practical balance between stock-style reliability and performance gains, making it a trusted choice for builders who value dependability alongside horsepower.