The AFR Magnum Intake Manifold Is Port-Matched to Your AFR Magnum Big Block Chevy Heads

If you run AFR Magnum 305cc, 315cc, and 325cc Rectangle Port Cylinder Heads on your carbureted big block Chevy, the AFR Magnum Intake Manifold is designed to fit them perfectly out of the box—no port matching required. That means you get maximum airflow that can help build more horsepower.

The dual plane intake has an air-gap design to help keep the air and fuel entering the cylinders cooler. And as we all know, cooler means more power.

Other features include port nitrous bosses, two distributor clamp locations and multiple front and rear coolant bosses. The AFR Magnum Intake Manifold accepts 4150- and 4160-style squarebore carburetors.

SEE AFR’S MAGNUM INTAKE MANIFOLD FOR BIG BLOCK CHEVY