Small Block Chev Hi-Rise Single Plane Intake Manifold 3000-7500 rpm Black

Unlock maximum horsepower from your carburetted small-block Chevy with this Hi-Rise Single Plane intake manifold. Finished in black, it’s engineered to deliver a steady, high-velocity air and fuel flow across a wide RPM range, making it a favorite for hot-rodders and race-inspired builds alike.

• Compatibility: Fits early Small Block Chevy 302-400 cubic inch engines.
• Configuration: Hi-Rise, single-plane design optimized for high RPM performance.
• RPM range: 3000 to 7500 RPM to match aggressive cam profiles and larger displacement builds.
• Carburettor Pad: Square-bore carburettor pad designed to accept aftermarket square-bore carburettors with manual or electric choke options.
• Finish: Black finish for a aggressive look and corrosion resistance.
• Non-EGR: Non-EGR design to minimize flow restrictions and maximize power at high RPM.
• Port location: Standard 23° Chevrolet cylinder head ports for compatibility with typical small-block heads.
• Water ports and hardware: Four corner water ports plus a fifth water outlet at the front; dual distributor hold-downs for secure, reliable timing setup.
• Accessory compatibility: In most cases, accepts late-model water necks, air conditioning, alternator, and HEI ignition systems.
• Installation note: Intake runners should be port-matched to your cylinder heads for optimal performance and air/fuel distribution.

What it’s designed to deliver

The Hi-Rise design keeps air and fuel moving into the engine with minimal turbulence, supporting strong top-end power and broad, usable torque in high-rpm applications. It’s specifically crafted for 302-400 ci small-block Chevy engines and is a practical upgrade when chasing higher RPM output from a carburetted setup.

Practical considerations

Expect compatibility with common aftermarket components, but plan for port matching and verify that your engine bay clearance allows the high-rise plenum and any additional hood or accessory fitments. For the best results, pair this manifold with a suitable square-bore carburettor and verify compatibility with your existing ignition and cooling system components.