Compare Maximum number of 4 items selected Flowtech Real-Seal Oval Port Ferroglass Exhaust Header Gasket - 99161FLT Part #: 99161FLT Line: FLT Flowtech Real-Seal Oval Port Ferroglass Exhaust Header Gasket 90 Day Limited Warranty Material: Ferroglass Port Shape: Oval Quantity: 2 Thickness (mm): 1.58mm Thickness (in): 0.062 Inch Port Size (in): 1.500 X 1.820 Inch Port Size (mm): 38.1mm X 46.23mm Air Check Valve Included: No Engine Family: Chevrolet Small Block Gen-I Collector Gaskets Included: Yes Flange Gaskets Included: Yes Show More Show Less