Big Block Chev Hi-Rise Single Plane Intake Manifold Oval Ports Black

Unlock peak Big Block Chevy performance with the Hi‑Rise Oval-Port Single-Plane Intake Manifold in a rugged black finish. Built for oval‑port heads and square‑bore carburetors, this manifold is designed to maximize air and fuel delivery at high RPM, delivering crisp throttle response and durable horsepower from the track to the street.

Performance and design highlights

• Hi‑Rise, single‑plane configuration optimized for high RPM power and strong mid‑range torque
• Oval‑port runners measure 1.60" x 1.94" for precise flow to oval‑port cylinder heads
• Carburetor pad is square bore, compatible with aftermarket square‑bore carbs (manual or electric choke)
• Non‑EGR design to maximize flow and peak performance in carbureted applications
• Finished in black for a rugged, OEM‑style appearance
• Overall height of 160 mm from carb pad to bottom; check bonnet clearance on your setup
• Intake runners are designed for large‑inch Big Block Chevy engines (396–502 ci), with compatibility across 396–454 and 502 ci configurations
• Port matching recommended for optimum power delivery to your specific cylinder heads
• Dual distributor hold‑downs, four corner water ports, plus a fifth water outlet at the front for reliable cooling and secure mounting
• Compatible with many late‑model water necks, A/C, alternator, and H.E.I. ignition installations

Included components

• Intake manifold gasket, Fel Pro 1212
• 4 × 5/16‑18" carburetor studs
• 2 × 5/16‑18" mounting holes
• 2 × 3/8‑16" distributor hold‑down mounting holes
• 5 × 1/2" NPT ports

Installation and setup

• Port‑match the intake runners to your cylinder heads for maximum flow and power
• Verify bonnet clearance due to the 160 mm height
• Ensure compatibility with your water necks, A/C, alternator, and ignition setup for a clean installation
• Non‑EGR design is intended for peak performance in carburetted applications