Bb Chevy Hi-Ram Oval

The Bb Chevy Hi-Ram Oval intake manifold by Weiand is a high-performance component designed specifically for big-block Chevrolet engines. It caters to automotive enthusiasts and serious builders who seek to enhance their engine's airflow and responsiveness. This manifold is ideal for those looking to improve volumetric efficiency while maintaining street-friendly characteristics.

The hi-ram design elevates the intake runners above the traditional centerline, allowing for longer runner lengths that boost mid-range and high-RPM power delivery. Weiand's oval-port design optimizes the cross-sectional flow area to align with big-block Chevy cylinder head porting, minimizing velocity losses and turbulence. Constructed from cast aluminum, this manifold ensures excellent heat dissipation and structural integrity under high-load conditions.

This manifold is particularly suited for big-block Chevrolet engine builds ranging from 396 to 502 cubic inches, especially those with oval-port cylinder heads. Its extended runners create a tuning effect beneficial across a wide RPM range, making it effective for both street and strip applications. Installation requires compatible fuel injection or carburetion systems designed for hi-rise manifold mounting heights.