Compare Flowtech Real-Seal Round Port Multi-Layer Steel (MLS) Exhaust Header Gasket - 99150 Part #: 99150 Line: FLT Flowtech Real-Seal Round Port Multi-Layer Steel (MLS) Exhaust Header Gasket 90 Day Limited Warranty Material: Multi-Layer Steel (MLS) Port Shape: Round Quantity: 2 Thickness (mm): 3.18mm Thickness (in): 0.125 Inch Port Size (in): 1.630 Inch Port Size (mm): 41.402mm Air Check Valve Included: No Engine Family: Chevrolet Small Block Gen-I Collector Gaskets Included: No Flange Gaskets Included: Yes Show More Show Less
Compare Flowtech Real-Seal Square Port Multi-Layer Steel (MLS) Exhaust Header Gasket - 99150A Part #: 99150A Line: FLT Flowtech Real-Seal Square Port Multi-Layer Steel (MLS) Exhaust Header Gasket 90 Day Limited Warranty Material: Multi-Layer Steel (MLS) Port Shape: Square Quantity: 2 Thickness (mm): 3.18mm Thickness (in): 0.125 Inch Port Size (in): 1.450 X 1.480 Inch Port Size (mm): 36.83mm X 37.59mm Air Check Valve Included: No Engine Family: Chevrolet Small Block Gen-I Collector Gaskets Included: No Flange Gaskets Included: Yes Show More Show Less
Compare Flowtech Real-Seal Round Port Multi-Layer Steel (MLS) Exhaust Header Gasket - 99153 Part #: 99153 Line: FLT Flowtech Real-Seal Round Port Multi-Layer Steel (MLS) Exhaust Header Gasket 90 Day Limited Warranty Material: Multi-Layer Steel (MLS) Port Shape: Round Quantity: 2 Thickness (mm): 3.18mm Thickness (in): 0.125 Inch Port Size (in): 2.150 Inch Port Size (mm): 54.61mm Air Check Valve Included: No Engine Family: GM Big Block Collector Gaskets Included: No Flange Gaskets Included: Yes Show More Show Less
Compare 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