Edelbrock part #7158 Performer RPM small port intake manifold is designed to fit 1958-1965 Chevrolet 348/409 W big-block engines. Includes Oil Fill Tube (not installed) and matching push-in breather cap. The Oil Fill Tube and Breather are also available Product Features:1500-6500 RPM RangeDual Plane Type-4150 Style Flange4.35 in. Front Height, 4.94 in. Center Height, 5.54 in. Rear HeightSatin FinishNon-EGR
