Edelbrock part #7159 Performer RPM intake manifold is designed to fit 1958-1965 Chevrolet 348/409 W big-block engines with factory large port or with our Performer RPM W-series heads #60809 or #60819. Includes Oil Fill Tube (not installed) and matchin Product Features:1500-6500 RPM RangeDual Plane Type-4150 Style Flange4.35 in. Front Height, 4.945 in. Center Height, 5.54 in. Rear HeightSatin FinishNon-EGR
