Compare Maximum number of 4 items selected Representative Image Edelbrock RPM Air Gap Intake Manifold - 7551 Part #: 7551 Line: EDB Edelbrock RPM Air Gap Intake Manifold Manufacturer's Defect Warranty Material: Aluminum EGR Compatible: No Gasket Or Seal Included: No Engine Make/Size: Oldsmobile 455 Flange Type: 4150 Head Type: Standard Range (RPM): 1500 To 6500 RPM Front Height (in): 5.040 Inch Rear Height (in): 6.040 Inch Single Or Dual Plane: Dual Show More Show Less